Home / 15,658.98-21,610.76-8,586.78

Finding the Fourth Proportional to 15,658.98, 21,610.76 and 8,586.78

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Solution

The fourth proportional to 15,658.98, 21,610.76 and 8,586.78 is: 11,850.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658.98 : 21,610.76 = 8,586.78 : x
  2. Step 2: Convert to fraction form
    15,658.98/21,610.76 = 8,586.78/x
  3. Step 3: Cross multiply
    15,658.98x = 21,610.76 × 8,586.78
  4. Step 4: Simplify right side
    15,658.98x = 185,566,841.75
  5. Step 5: Solve for x
    x = 185,566,841.75/15,658.98
  6. Step 6: Final answer
    x = 11,850.51

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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.