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Finding the Fourth Proportional to 12,079.59, 18,119.96 and 9,967.30

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Solution

The fourth proportional to 12,079.59, 18,119.96 and 9,967.30 is: 14,951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.59 : 18,119.96 = 9,967.30 : x
  2. Step 2: Convert to fraction form
    12,079.59/18,119.96 = 9,967.30/x
  3. Step 3: Cross multiply
    12,079.59x = 18,119.96 × 9,967.30
  4. Step 4: Simplify right side
    12,079.59x = 180,607,087.50
  5. Step 5: Solve for x
    x = 180,607,087.50/12,079.59
  6. Step 6: Final answer
    x = 14,951.43

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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.