Home / 12,237.18-16,887.66-8,658.55

Finding the Fourth Proportional to 12,237.18, 16,887.66 and 8,658.55

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Solution

The fourth proportional to 12,237.18, 16,887.66 and 8,658.55 is: 11,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.18 : 16,887.66 = 8,658.55 : x
  2. Step 2: Convert to fraction form
    12,237.18/16,887.66 = 8,658.55/x
  3. Step 3: Cross multiply
    12,237.18x = 16,887.66 × 8,658.55
  4. Step 4: Simplify right side
    12,237.18x = 146,222,615.20
  5. Step 5: Solve for x
    x = 146,222,615.20/12,237.18
  6. Step 6: Final answer
    x = 11,949.05

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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.