Home / 15,150.81-22,729.29-6,385.71

Finding the Fourth Proportional to 15,150.81, 22,729.29 and 6,385.71

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Solution

The fourth proportional to 15,150.81, 22,729.29 and 6,385.71 is: 9,579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.81 : 22,729.29 = 6,385.71 : x
  2. Step 2: Convert to fraction form
    15,150.81/22,729.29 = 6,385.71/x
  3. Step 3: Cross multiply
    15,150.81x = 22,729.29 × 6,385.71
  4. Step 4: Simplify right side
    15,150.81x = 145,142,654.45
  5. Step 5: Solve for x
    x = 145,142,654.45/15,150.81
  6. Step 6: Final answer
    x = 9,579.86

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1.5x scale

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.