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Finding the Fourth Proportional to 6,656.30, 9,984.45 and 6,613.10

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Solution

The fourth proportional to 6,656.30, 9,984.45 and 6,613.10 is: 9,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.30 : 9,984.45 = 6,613.10 : x
  2. Step 2: Convert to fraction form
    6,656.30/9,984.45 = 6,613.10/x
  3. Step 3: Cross multiply
    6,656.30x = 9,984.45 × 6,613.10
  4. Step 4: Simplify right side
    6,656.30x = 66,028,166.30
  5. Step 5: Solve for x
    x = 66,028,166.30/6,656.30
  6. Step 6: Final answer
    x = 9,919.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.