Home / 9,105.30-12,539.07-7,517.70

Finding the Fourth Proportional to 9,105.30, 12,539.07 and 7,517.70

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Solution

The fourth proportional to 9,105.30, 12,539.07 and 7,517.70 is: 10,352.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,105.30 : 12,539.07 = 7,517.70 : x
  2. Step 2: Convert to fraction form
    9,105.30/12,539.07 = 7,517.70/x
  3. Step 3: Cross multiply
    9,105.30x = 12,539.07 × 7,517.70
  4. Step 4: Simplify right side
    9,105.30x = 94,264,966.54
  5. Step 5: Solve for x
    x = 94,264,966.54/9,105.30
  6. Step 6: Final answer
    x = 10,352.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.