Home / 15,489.92-21,365.28-10,183.04

Finding the Fourth Proportional to 15,489.92, 21,365.28 and 10,183.04

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Solution

The fourth proportional to 15,489.92, 21,365.28 and 10,183.04 is: 14,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489.92 : 21,365.28 = 10,183.04 : x
  2. Step 2: Convert to fraction form
    15,489.92/21,365.28 = 10,183.04/x
  3. Step 3: Cross multiply
    15,489.92x = 21,365.28 × 10,183.04
  4. Step 4: Simplify right side
    15,489.92x = 217,563,500.85
  5. Step 5: Solve for x
    x = 217,563,500.85/15,489.92
  6. Step 6: Final answer
    x = 14,045.49

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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.