Home / 15,140.62-22,715.79-4,612.70

Finding the Fourth Proportional to 15,140.62, 22,715.79 and 4,612.70

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Solution

The fourth proportional to 15,140.62, 22,715.79 and 4,612.70 is: 6,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.62 : 22,715.79 = 4,612.70 : x
  2. Step 2: Convert to fraction form
    15,140.62/22,715.79 = 4,612.70/x
  3. Step 3: Cross multiply
    15,140.62x = 22,715.79 × 4,612.70
  4. Step 4: Simplify right side
    15,140.62x = 104,781,062.19
  5. Step 5: Solve for x
    x = 104,781,062.19/15,140.62
  6. Step 6: Final answer
    x = 6,920.53

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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.