Home / 15,428.64-23,144.79-5,572.56

Finding the Fourth Proportional to 15,428.64, 23,144.79 and 5,572.56

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Solution

The fourth proportional to 15,428.64, 23,144.79 and 5,572.56 is: 8,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.64 : 23,144.79 = 5,572.56 : x
  2. Step 2: Convert to fraction form
    15,428.64/23,144.79 = 5,572.56/x
  3. Step 3: Cross multiply
    15,428.64x = 23,144.79 × 5,572.56
  4. Step 4: Simplify right side
    15,428.64x = 128,975,730.96
  5. Step 5: Solve for x
    x = 128,975,730.96/15,428.64
  6. Step 6: Final answer
    x = 8,359.50

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.