Home / 10,989.67-16,478.70-3,593.20

Finding the Fourth Proportional to 10,989.67, 16,478.70 and 3,593.20

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Solution

The fourth proportional to 10,989.67, 16,478.70 and 3,593.20 is: 5,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.67 : 16,478.70 = 3,593.20 : x
  2. Step 2: Convert to fraction form
    10,989.67/16,478.70 = 3,593.20/x
  3. Step 3: Cross multiply
    10,989.67x = 16,478.70 × 3,593.20
  4. Step 4: Simplify right side
    10,989.67x = 59,211,264.84
  5. Step 5: Solve for x
    x = 59,211,264.84/10,989.67
  6. Step 6: Final answer
    x = 5,387.90

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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.