Home / 12,237.60-16,887.68-6,648.56

Finding the Fourth Proportional to 12,237.60, 16,887.68 and 6,648.56

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Solution

The fourth proportional to 12,237.60, 16,887.68 and 6,648.56 is: 9,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.60 : 16,887.68 = 6,648.56 : x
  2. Step 2: Convert to fraction form
    12,237.60/16,887.68 = 6,648.56/x
  3. Step 3: Cross multiply
    12,237.60x = 16,887.68 × 6,648.56
  4. Step 4: Simplify right side
    12,237.60x = 112,278,753.74
  5. Step 5: Solve for x
    x = 112,278,753.74/12,237.60
  6. Step 6: Final answer
    x = 9,174.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.