Home / 8,772.47-13,158.70-2,929.53

Finding the Fourth Proportional to 8,772.47, 13,158.70 and 2,929.53

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Solution

The fourth proportional to 8,772.47, 13,158.70 and 2,929.53 is: 4,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.47 : 13,158.70 = 2,929.53 : x
  2. Step 2: Convert to fraction form
    8,772.47/13,158.70 = 2,929.53/x
  3. Step 3: Cross multiply
    8,772.47x = 13,158.70 × 2,929.53
  4. Step 4: Simplify right side
    8,772.47x = 38,548,864.91
  5. Step 5: Solve for x
    x = 38,548,864.91/8,772.47
  6. Step 6: Final answer
    x = 4,394.30

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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.