Home / 15,134.88-20,896.43-9,471.92

Finding the Fourth Proportional to 15,134.88, 20,896.43 and 9,471.92

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Solution

The fourth proportional to 15,134.88, 20,896.43 and 9,471.92 is: 13,077.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.88 : 20,896.43 = 9,471.92 : x
  2. Step 2: Convert to fraction form
    15,134.88/20,896.43 = 9,471.92/x
  3. Step 3: Cross multiply
    15,134.88x = 20,896.43 × 9,471.92
  4. Step 4: Simplify right side
    15,134.88x = 197,929,318.13
  5. Step 5: Solve for x
    x = 197,929,318.13/15,134.88
  6. Step 6: Final answer
    x = 13,077.69

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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.