Home / 15,746.53-21,729.23-8,672.96

Finding the Fourth Proportional to 15,746.53, 21,729.23 and 8,672.96

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Solution

The fourth proportional to 15,746.53, 21,729.23 and 8,672.96 is: 11,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.53 : 21,729.23 = 8,672.96 : x
  2. Step 2: Convert to fraction form
    15,746.53/21,729.23 = 8,672.96/x
  3. Step 3: Cross multiply
    15,746.53x = 21,729.23 × 8,672.96
  4. Step 4: Simplify right side
    15,746.53x = 188,456,590.61
  5. Step 5: Solve for x
    x = 188,456,590.61/15,746.53
  6. Step 6: Final answer
    x = 11,968.13

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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.