Home / 15,939.52-21,996.24-10,903.57

Finding the Fourth Proportional to 15,939.52, 21,996.24 and 10,903.57

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Solution

The fourth proportional to 15,939.52, 21,996.24 and 10,903.57 is: 15,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,939.52 : 21,996.24 = 10,903.57 : x
  2. Step 2: Convert to fraction form
    15,939.52/21,996.24 = 10,903.57/x
  3. Step 3: Cross multiply
    15,939.52x = 21,996.24 × 10,903.57
  4. Step 4: Simplify right side
    15,939.52x = 239,837,446.70
  5. Step 5: Solve for x
    x = 239,837,446.70/15,939.52
  6. Step 6: Final answer
    x = 15,046.72

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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.