Home / 15,141.85-22,712.90-5,281.12

Finding the Fourth Proportional to 15,141.85, 22,712.90 and 5,281.12

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Solution

The fourth proportional to 15,141.85, 22,712.90 and 5,281.12 is: 7,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.85 : 22,712.90 = 5,281.12 : x
  2. Step 2: Convert to fraction form
    15,141.85/22,712.90 = 5,281.12/x
  3. Step 3: Cross multiply
    15,141.85x = 22,712.90 × 5,281.12
  4. Step 4: Simplify right side
    15,141.85x = 119,949,550.45
  5. Step 5: Solve for x
    x = 119,949,550.45/15,141.85
  6. Step 6: Final answer
    x = 7,921.72

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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.