Home / 15,684.68-21,644.70-8,610.92

Finding the Fourth Proportional to 15,684.68, 21,644.70 and 8,610.92

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Solution

The fourth proportional to 15,684.68, 21,644.70 and 8,610.92 is: 11,882.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.68 : 21,644.70 = 8,610.92 : x
  2. Step 2: Convert to fraction form
    15,684.68/21,644.70 = 8,610.92/x
  3. Step 3: Cross multiply
    15,684.68x = 21,644.70 × 8,610.92
  4. Step 4: Simplify right side
    15,684.68x = 186,380,780.12
  5. Step 5: Solve for x
    x = 186,380,780.12/15,684.68
  6. Step 6: Final answer
    x = 11,882.98

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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.