Home / 15,440.42-21,306.08-8,726.04

Finding the Fourth Proportional to 15,440.42, 21,306.08 and 8,726.04

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Solution

The fourth proportional to 15,440.42, 21,306.08 and 8,726.04 is: 12,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.42 : 21,306.08 = 8,726.04 : x
  2. Step 2: Convert to fraction form
    15,440.42/21,306.08 = 8,726.04/x
  3. Step 3: Cross multiply
    15,440.42x = 21,306.08 × 8,726.04
  4. Step 4: Simplify right side
    15,440.42x = 185,917,662.69
  5. Step 5: Solve for x
    x = 185,917,662.69/15,440.42
  6. Step 6: Final answer
    x = 12,040.97

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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.