Home / 12,403.70-17,117.13-6,738.39

Finding the Fourth Proportional to 12,403.70, 17,117.13 and 6,738.39

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Solution

The fourth proportional to 12,403.70, 17,117.13 and 6,738.39 is: 9,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.70 : 17,117.13 = 6,738.39 : x
  2. Step 2: Convert to fraction form
    12,403.70/17,117.13 = 6,738.39/x
  3. Step 3: Cross multiply
    12,403.70x = 17,117.13 × 6,738.39
  4. Step 4: Simplify right side
    12,403.70x = 115,341,961.81
  5. Step 5: Solve for x
    x = 115,341,961.81/12,403.70
  6. Step 6: Final answer
    x = 9,299.00

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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.