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Finding the Fourth Proportional to 8,066.99, 12,089.86 and 7,540.90

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Solution

The fourth proportional to 8,066.99, 12,089.86 and 7,540.90 is: 11,301.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,066.99 : 12,089.86 = 7,540.90 : x
  2. Step 2: Convert to fraction form
    8,066.99/12,089.86 = 7,540.90/x
  3. Step 3: Cross multiply
    8,066.99x = 12,089.86 × 7,540.90
  4. Step 4: Simplify right side
    8,066.99x = 91,168,376.20
  5. Step 5: Solve for x
    x = 91,168,376.20/8,066.99
  6. Step 6: Final answer
    x = 11,301.41

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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.