Home / 9,517.50-13,139.91-6,211.26

Finding the Fourth Proportional to 9,517.50, 13,139.91 and 6,211.26

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Solution

The fourth proportional to 9,517.50, 13,139.91 and 6,211.26 is: 8,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,517.50 : 13,139.91 = 6,211.26 : x
  2. Step 2: Convert to fraction form
    9,517.50/13,139.91 = 6,211.26/x
  3. Step 3: Cross multiply
    9,517.50x = 13,139.91 × 6,211.26
  4. Step 4: Simplify right side
    9,517.50x = 81,615,397.39
  5. Step 5: Solve for x
    x = 81,615,397.39/9,517.50
  6. Step 6: Final answer
    x = 8,575.30

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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.