Home / 12,474,136.20-18,711,204.30-11,781,294.60

Finding the Fourth Proportional to 12,474,136.20, 18,711,204.30 and 11,781,294.60

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Solution

The fourth proportional to 12,474,136.20, 18,711,204.30 and 11,781,294.60 is: 17,671,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474,136.20 : 18,711,204.30 = 11,781,294.60 : x
  2. Step 2: Convert to fraction form
    12,474,136.20/18,711,204.30 = 11,781,294.60/x
  3. Step 3: Cross multiply
    12,474,136.20x = 18,711,204.30 × 11,781,294.60
  4. Step 4: Simplify right side
    12,474,136.20x = 220,442,210,179,086.78
  5. Step 5: Solve for x
    x = 220,442,210,179,086.78/12,474,136.20
  6. Step 6: Final answer
    x = 17,671,941.90

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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.