Home / 12,397.38-18,630.12-6,558.12

Finding the Fourth Proportional to 12,397.38, 18,630.12 and 6,558.12

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Solution

The fourth proportional to 12,397.38, 18,630.12 and 6,558.12 is: 9,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.38 : 18,630.12 = 6,558.12 : x
  2. Step 2: Convert to fraction form
    12,397.38/18,630.12 = 6,558.12/x
  3. Step 3: Cross multiply
    12,397.38x = 18,630.12 × 6,558.12
  4. Step 4: Simplify right side
    12,397.38x = 122,178,562.57
  5. Step 5: Solve for x
    x = 122,178,562.57/12,397.38
  6. Step 6: Final answer
    x = 9,855.19

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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.