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Finding the Fourth Proportional to 18,337.40, 27,506.10 and 12,116.60

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Solution

The fourth proportional to 18,337.40, 27,506.10 and 12,116.60 is: 18,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.40 : 27,506.10 = 12,116.60 : x
  2. Step 2: Convert to fraction form
    18,337.40/27,506.10 = 12,116.60/x
  3. Step 3: Cross multiply
    18,337.40x = 27,506.10 × 12,116.60
  4. Step 4: Simplify right side
    18,337.40x = 333,280,411.26
  5. Step 5: Solve for x
    x = 333,280,411.26/18,337.40
  6. Step 6: Final answer
    x = 18,174.90

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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.