Home / 15,440.26-21,308.40-8,726.17

Finding the Fourth Proportional to 15,440.26, 21,308.40 and 8,726.17

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Solution

The fourth proportional to 15,440.26, 21,308.40 and 8,726.17 is: 12,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.26 : 21,308.40 = 8,726.17 : x
  2. Step 2: Convert to fraction form
    15,440.26/21,308.40 = 8,726.17/x
  3. Step 3: Cross multiply
    15,440.26x = 21,308.40 × 8,726.17
  4. Step 4: Simplify right side
    15,440.26x = 185,940,720.83
  5. Step 5: Solve for x
    x = 185,940,720.83/15,440.26
  6. Step 6: Final answer
    x = 12,042.59

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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.