Home / 10,957.44-15,126.03-8,438.61

Finding the Fourth Proportional to 10,957.44, 15,126.03 and 8,438.61

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Solution

The fourth proportional to 10,957.44, 15,126.03 and 8,438.61 is: 11,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.44 : 15,126.03 = 8,438.61 : x
  2. Step 2: Convert to fraction form
    10,957.44/15,126.03 = 8,438.61/x
  3. Step 3: Cross multiply
    10,957.44x = 15,126.03 × 8,438.61
  4. Step 4: Simplify right side
    10,957.44x = 127,642,668.02
  5. Step 5: Solve for x
    x = 127,642,668.02/10,957.44
  6. Step 6: Final answer
    x = 11,648.95

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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.