Home / 15,140.81-22,714.88-4,752.56

Finding the Fourth Proportional to 15,140.81, 22,714.88 and 4,752.56

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Solution

The fourth proportional to 15,140.81, 22,714.88 and 4,752.56 is: 7,129.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.81 : 22,714.88 = 4,752.56 : x
  2. Step 2: Convert to fraction form
    15,140.81/22,714.88 = 4,752.56/x
  3. Step 3: Cross multiply
    15,140.81x = 22,714.88 × 4,752.56
  4. Step 4: Simplify right side
    15,140.81x = 107,953,863.12
  5. Step 5: Solve for x
    x = 107,953,863.12/15,140.81
  6. Step 6: Final answer
    x = 7,129.99

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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.