Home / 10,989.20-16,489.71-7,293.17

Finding the Fourth Proportional to 10,989.20, 16,489.71 and 7,293.17

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Solution

The fourth proportional to 10,989.20, 16,489.71 and 7,293.17 is: 10,943.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.20 : 16,489.71 = 7,293.17 : x
  2. Step 2: Convert to fraction form
    10,989.20/16,489.71 = 7,293.17/x
  3. Step 3: Cross multiply
    10,989.20x = 16,489.71 × 7,293.17
  4. Step 4: Simplify right side
    10,989.20x = 120,262,299.50
  5. Step 5: Solve for x
    x = 120,262,299.50/10,989.20
  6. Step 6: Final answer
    x = 10,943.68

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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.