Home / 15,126.38-20,835.30-10,581.02

Finding the Fourth Proportional to 15,126.38, 20,835.30 and 10,581.02

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Solution

The fourth proportional to 15,126.38, 20,835.30 and 10,581.02 is: 14,574.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.38 : 20,835.30 = 10,581.02 : x
  2. Step 2: Convert to fraction form
    15,126.38/20,835.30 = 10,581.02/x
  3. Step 3: Cross multiply
    15,126.38x = 20,835.30 × 10,581.02
  4. Step 4: Simplify right side
    15,126.38x = 220,458,726.01
  5. Step 5: Solve for x
    x = 220,458,726.01/15,126.38
  6. Step 6: Final answer
    x = 14,574.45

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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.