Home / 15,743.04-21,726.36-8,671.02

Finding the Fourth Proportional to 15,743.04, 21,726.36 and 8,671.02

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Solution

The fourth proportional to 15,743.04, 21,726.36 and 8,671.02 is: 11,966.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.04 : 21,726.36 = 8,671.02 : x
  2. Step 2: Convert to fraction form
    15,743.04/21,726.36 = 8,671.02/x
  3. Step 3: Cross multiply
    15,743.04x = 21,726.36 × 8,671.02
  4. Step 4: Simplify right side
    15,743.04x = 188,389,702.09
  5. Step 5: Solve for x
    x = 188,389,702.09/15,743.04
  6. Step 6: Final answer
    x = 11,966.54

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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.