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Finding the Fourth Proportional to 15,046.98, 20,764.68 and 8,671.23

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Solution

The fourth proportional to 15,046.98, 20,764.68 and 8,671.23 is: 11,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.98 : 20,764.68 = 8,671.23 : x
  2. Step 2: Convert to fraction form
    15,046.98/20,764.68 = 8,671.23/x
  3. Step 3: Cross multiply
    15,046.98x = 20,764.68 × 8,671.23
  4. Step 4: Simplify right side
    15,046.98x = 180,055,316.16
  5. Step 5: Solve for x
    x = 180,055,316.16/15,046.98
  6. Step 6: Final answer
    x = 11,966.21

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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.