Home / 12,742.92-19,132.20-9,068.76

Finding the Fourth Proportional to 12,742.92, 19,132.20 and 9,068.76

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Solution

The fourth proportional to 12,742.92, 19,132.20 and 9,068.76 is: 13,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.92 : 19,132.20 = 9,068.76 : x
  2. Step 2: Convert to fraction form
    12,742.92/19,132.20 = 9,068.76/x
  3. Step 3: Cross multiply
    12,742.92x = 19,132.20 × 9,068.76
  4. Step 4: Simplify right side
    12,742.92x = 173,505,330.07
  5. Step 5: Solve for x
    x = 173,505,330.07/12,742.92
  6. Step 6: Final answer
    x = 13,615.82

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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.