Home / 12,089.76-18,134.60-3,770.25

Finding the Fourth Proportional to 12,089.76, 18,134.60 and 3,770.25

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Solution

The fourth proportional to 12,089.76, 18,134.60 and 3,770.25 is: 5,655.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.76 : 18,134.60 = 3,770.25 : x
  2. Step 2: Convert to fraction form
    12,089.76/18,134.60 = 3,770.25/x
  3. Step 3: Cross multiply
    12,089.76x = 18,134.60 × 3,770.25
  4. Step 4: Simplify right side
    12,089.76x = 68,371,956.80
  5. Step 5: Solve for x
    x = 68,371,956.80/12,089.76
  6. Step 6: Final answer
    x = 5,655.36

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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.