Home / 15,291.12-22,938.78-4,761.89

Finding the Fourth Proportional to 15,291.12, 22,938.78 and 4,761.89

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Solution

The fourth proportional to 15,291.12, 22,938.78 and 4,761.89 is: 7,143.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.12 : 22,938.78 = 4,761.89 : x
  2. Step 2: Convert to fraction form
    15,291.12/22,938.78 = 4,761.89/x
  3. Step 3: Cross multiply
    15,291.12x = 22,938.78 × 4,761.89
  4. Step 4: Simplify right side
    15,291.12x = 109,231,929.58
  5. Step 5: Solve for x
    x = 109,231,929.58/15,291.12
  6. Step 6: Final answer
    x = 7,143.49

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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.