Home / 15,373.24-21,215.16-8,658.97

Finding the Fourth Proportional to 15,373.24, 21,215.16 and 8,658.97

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Solution

The fourth proportional to 15,373.24, 21,215.16 and 8,658.97 is: 11,949.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.24 : 21,215.16 = 8,658.97 : x
  2. Step 2: Convert to fraction form
    15,373.24/21,215.16 = 8,658.97/x
  3. Step 3: Cross multiply
    15,373.24x = 21,215.16 × 8,658.97
  4. Step 4: Simplify right side
    15,373.24x = 183,701,380.95
  5. Step 5: Solve for x
    x = 183,701,380.95/15,373.24
  6. Step 6: Final answer
    x = 11,949.43

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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.