Home / 9,517.10-13,139.52-6,115.47

Finding the Fourth Proportional to 9,517.10, 13,139.52 and 6,115.47

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Solution

The fourth proportional to 9,517.10, 13,139.52 and 6,115.47 is: 8,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,517.10 : 13,139.52 = 6,115.47 : x
  2. Step 2: Convert to fraction form
    9,517.10/13,139.52 = 6,115.47/x
  3. Step 3: Cross multiply
    9,517.10x = 13,139.52 × 6,115.47
  4. Step 4: Simplify right side
    9,517.10x = 80,354,379.03
  5. Step 5: Solve for x
    x = 80,354,379.03/9,517.10
  6. Step 6: Final answer
    x = 8,443.16

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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.