Home / 15,098.72-20,846.09-9,808.61

Finding the Fourth Proportional to 15,098.72, 20,846.09 and 9,808.61

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Solution

The fourth proportional to 15,098.72, 20,846.09 and 9,808.61 is: 13,542.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,098.72 : 20,846.09 = 9,808.61 : x
  2. Step 2: Convert to fraction form
    15,098.72/20,846.09 = 9,808.61/x
  3. Step 3: Cross multiply
    15,098.72x = 20,846.09 × 9,808.61
  4. Step 4: Simplify right side
    15,098.72x = 204,471,087.13
  5. Step 5: Solve for x
    x = 204,471,087.13/15,098.72
  6. Step 6: Final answer
    x = 13,542.28

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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.