Home / 6,615.18-9,132.30-5,195.70

Finding the Fourth Proportional to 6,615.18, 9,132.30 and 5,195.70

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Solution

The fourth proportional to 6,615.18, 9,132.30 and 5,195.70 is: 7,172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.18 : 9,132.30 = 5,195.70 : x
  2. Step 2: Convert to fraction form
    6,615.18/9,132.30 = 5,195.70/x
  3. Step 3: Cross multiply
    6,615.18x = 9,132.30 × 5,195.70
  4. Step 4: Simplify right side
    6,615.18x = 47,448,691.11
  5. Step 5: Solve for x
    x = 47,448,691.11/6,615.18
  6. Step 6: Final answer
    x = 7,172.70

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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.