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Finding the Fourth Proportional to 9,086.40, 13,613.40 and 7,693.20

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Solution

The fourth proportional to 9,086.40, 13,613.40 and 7,693.20 is: 11,526.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,086.40 : 13,613.40 = 7,693.20 : x
  2. Step 2: Convert to fraction form
    9,086.40/13,613.40 = 7,693.20/x
  3. Step 3: Cross multiply
    9,086.40x = 13,613.40 × 7,693.20
  4. Step 4: Simplify right side
    9,086.40x = 104,730,608.88
  5. Step 5: Solve for x
    x = 104,730,608.88/9,086.40
  6. Step 6: Final answer
    x = 11,526.08

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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.