Home / 15,150.81-22,710.42-8,905.71

Finding the Fourth Proportional to 15,150.81, 22,710.42 and 8,905.71

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Solution

The fourth proportional to 15,150.81, 22,710.42 and 8,905.71 is: 13,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.81 : 22,710.42 = 8,905.71 : x
  2. Step 2: Convert to fraction form
    15,150.81/22,710.42 = 8,905.71/x
  3. Step 3: Cross multiply
    15,150.81x = 22,710.42 × 8,905.71
  4. Step 4: Simplify right side
    15,150.81x = 202,252,414.50
  5. Step 5: Solve for x
    x = 202,252,414.50/15,150.81
  6. Step 6: Final answer
    x = 13,349.28

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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.