Home / 6,665.20-9,934.55-6,616.60

Finding the Fourth Proportional to 6,665.20, 9,934.55 and 6,616.60

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Solution

The fourth proportional to 6,665.20, 9,934.55 and 6,616.60 is: 9,862.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.20 : 9,934.55 = 6,616.60 : x
  2. Step 2: Convert to fraction form
    6,665.20/9,934.55 = 6,616.60/x
  3. Step 3: Cross multiply
    6,665.20x = 9,934.55 × 6,616.60
  4. Step 4: Simplify right side
    6,665.20x = 65,732,943.53
  5. Step 5: Solve for x
    x = 65,732,943.53/6,665.20
  6. Step 6: Final answer
    x = 9,862.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.