Home / 15,540.48-23,310.96-8,658.72

Finding the Fourth Proportional to 15,540.48, 23,310.96 and 8,658.72

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Solution

The fourth proportional to 15,540.48, 23,310.96 and 8,658.72 is: 12,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.48 : 23,310.96 = 8,658.72 : x
  2. Step 2: Convert to fraction form
    15,540.48/23,310.96 = 8,658.72/x
  3. Step 3: Cross multiply
    15,540.48x = 23,310.96 × 8,658.72
  4. Step 4: Simplify right side
    15,540.48x = 201,843,075.57
  5. Step 5: Solve for x
    x = 201,843,075.57/15,540.48
  6. Step 6: Final answer
    x = 12,988.21

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Similar ratio
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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.