Home / 15,044.40-20,754.70-9,072.61

Finding the Fourth Proportional to 15,044.40, 20,754.70 and 9,072.61

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Solution

The fourth proportional to 15,044.40, 20,754.70 and 9,072.61 is: 12,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.40 : 20,754.70 = 9,072.61 : x
  2. Step 2: Convert to fraction form
    15,044.40/20,754.70 = 9,072.61/x
  3. Step 3: Cross multiply
    15,044.40x = 20,754.70 × 9,072.61
  4. Step 4: Simplify right side
    15,044.40x = 188,299,224.20
  5. Step 5: Solve for x
    x = 188,299,224.20/15,044.40
  6. Step 6: Final answer
    x = 12,516.23

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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.