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Finding the Fourth Proportional to 12,167.10, 18,244.98 and 4,374.90

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Solution

The fourth proportional to 12,167.10, 18,244.98 and 4,374.90 is: 6,560.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.10 : 18,244.98 = 4,374.90 : x
  2. Step 2: Convert to fraction form
    12,167.10/18,244.98 = 4,374.90/x
  3. Step 3: Cross multiply
    12,167.10x = 18,244.98 × 4,374.90
  4. Step 4: Simplify right side
    12,167.10x = 79,819,963.00
  5. Step 5: Solve for x
    x = 79,819,963.00/12,167.10
  6. Step 6: Final answer
    x = 6,560.31

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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.