Home / 15,324.56-21,147.20-9,035.76

Finding the Fourth Proportional to 15,324.56, 21,147.20 and 9,035.76

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Solution

The fourth proportional to 15,324.56, 21,147.20 and 9,035.76 is: 12,468.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.56 : 21,147.20 = 9,035.76 : x
  2. Step 2: Convert to fraction form
    15,324.56/21,147.20 = 9,035.76/x
  3. Step 3: Cross multiply
    15,324.56x = 21,147.20 × 9,035.76
  4. Step 4: Simplify right side
    15,324.56x = 191,081,023.87
  5. Step 5: Solve for x
    x = 191,081,023.87/15,324.56
  6. Step 6: Final answer
    x = 12,468.94

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Double scale
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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.