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Finding the Fourth Proportional to 12,483.77, 17,227.74 and 6,818.68

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Solution

The fourth proportional to 12,483.77, 17,227.74 and 6,818.68 is: 9,409.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483.77 : 17,227.74 = 6,818.68 : x
  2. Step 2: Convert to fraction form
    12,483.77/17,227.74 = 6,818.68/x
  3. Step 3: Cross multiply
    12,483.77x = 17,227.74 × 6,818.68
  4. Step 4: Simplify right side
    12,483.77x = 117,470,412.09
  5. Step 5: Solve for x
    x = 117,470,412.09/12,483.77
  6. Step 6: Final answer
    x = 9,409.85

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.