Home / 12,237.20-16,887.16-6,648.20

Finding the Fourth Proportional to 12,237.20, 16,887.16 and 6,648.20

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Solution

The fourth proportional to 12,237.20, 16,887.16 and 6,648.20 is: 9,174.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.20 : 16,887.16 = 6,648.20 : x
  2. Step 2: Convert to fraction form
    12,237.20/16,887.16 = 6,648.20/x
  3. Step 3: Cross multiply
    12,237.20x = 16,887.16 × 6,648.20
  4. Step 4: Simplify right side
    12,237.20x = 112,269,217.11
  5. Step 5: Solve for x
    x = 112,269,217.11/12,237.20
  6. Step 6: Final answer
    x = 9,174.42

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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.