Home / 14,618.34-20,173.32-8,330.76

Finding the Fourth Proportional to 14,618.34, 20,173.32 and 8,330.76

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Solution

The fourth proportional to 14,618.34, 20,173.32 and 8,330.76 is: 11,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.34 : 20,173.32 = 8,330.76 : x
  2. Step 2: Convert to fraction form
    14,618.34/20,173.32 = 8,330.76/x
  3. Step 3: Cross multiply
    14,618.34x = 20,173.32 × 8,330.76
  4. Step 4: Simplify right side
    14,618.34x = 168,059,087.32
  5. Step 5: Solve for x
    x = 168,059,087.32/14,618.34
  6. Step 6: Final answer
    x = 11,496.45

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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.