Home / 11,612.60-16,003.50-11,439.80

Finding the Fourth Proportional to 11,612.60, 16,003.50 and 11,439.80

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Solution

The fourth proportional to 11,612.60, 16,003.50 and 11,439.80 is: 15,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.60 : 16,003.50 = 11,439.80 : x
  2. Step 2: Convert to fraction form
    11,612.60/16,003.50 = 11,439.80/x
  3. Step 3: Cross multiply
    11,612.60x = 16,003.50 × 11,439.80
  4. Step 4: Simplify right side
    11,612.60x = 183,076,839.30
  5. Step 5: Solve for x
    x = 183,076,839.30/11,612.60
  6. Step 6: Final answer
    x = 15,765.36

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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.