Home / 15,704.26-21,673.92-8,990.98

Finding the Fourth Proportional to 15,704.26, 21,673.92 and 8,990.98

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Solution

The fourth proportional to 15,704.26, 21,673.92 and 8,990.98 is: 12,408.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.26 : 21,673.92 = 8,990.98 : x
  2. Step 2: Convert to fraction form
    15,704.26/21,673.92 = 8,990.98/x
  3. Step 3: Cross multiply
    15,704.26x = 21,673.92 × 8,990.98
  4. Step 4: Simplify right side
    15,704.26x = 194,869,781.24
  5. Step 5: Solve for x
    x = 194,869,781.24/15,704.26
  6. Step 6: Final answer
    x = 12,408.72

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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.