Home / 15,321.18-22,988.28-8,658.59

Finding the Fourth Proportional to 15,321.18, 22,988.28 and 8,658.59

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Solution

The fourth proportional to 15,321.18, 22,988.28 and 8,658.59 is: 12,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321.18 : 22,988.28 = 8,658.59 : x
  2. Step 2: Convert to fraction form
    15,321.18/22,988.28 = 8,658.59/x
  3. Step 3: Cross multiply
    15,321.18x = 22,988.28 × 8,658.59
  4. Step 4: Simplify right side
    15,321.18x = 199,045,933.09
  5. Step 5: Solve for x
    x = 199,045,933.09/15,321.18
  6. Step 6: Final answer
    x = 12,991.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.