Home / 12,355.28-18,540.16-4,569.52

Finding the Fourth Proportional to 12,355.28, 18,540.16 and 4,569.52

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Solution

The fourth proportional to 12,355.28, 18,540.16 and 4,569.52 is: 6,856.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.28 : 18,540.16 = 4,569.52 : x
  2. Step 2: Convert to fraction form
    12,355.28/18,540.16 = 4,569.52/x
  3. Step 3: Cross multiply
    12,355.28x = 18,540.16 × 4,569.52
  4. Step 4: Simplify right side
    12,355.28x = 84,719,631.92
  5. Step 5: Solve for x
    x = 84,719,631.92/12,355.28
  6. Step 6: Final answer
    x = 6,856.96

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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.