Home / 12,444.60-18,612.90-11,137.80

Finding the Fourth Proportional to 12,444.60, 18,612.90 and 11,137.80

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Solution

The fourth proportional to 12,444.60, 18,612.90 and 11,137.80 is: 16,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.60 : 18,612.90 = 11,137.80 : x
  2. Step 2: Convert to fraction form
    12,444.60/18,612.90 = 11,137.80/x
  3. Step 3: Cross multiply
    12,444.60x = 18,612.90 × 11,137.80
  4. Step 4: Simplify right side
    12,444.60x = 207,306,757.62
  5. Step 5: Solve for x
    x = 207,306,757.62/12,444.60
  6. Step 6: Final answer
    x = 16,658.37

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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.