Home / 15,540.60-23,310.90-7,748.40

Finding the Fourth Proportional to 15,540.60, 23,310.90 and 7,748.40

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Solution

The fourth proportional to 15,540.60, 23,310.90 and 7,748.40 is: 11,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.60 : 23,310.90 = 7,748.40 : x
  2. Step 2: Convert to fraction form
    15,540.60/23,310.90 = 7,748.40/x
  3. Step 3: Cross multiply
    15,540.60x = 23,310.90 × 7,748.40
  4. Step 4: Simplify right side
    15,540.60x = 180,622,177.56
  5. Step 5: Solve for x
    x = 180,622,177.56/15,540.60
  6. Step 6: Final answer
    x = 11,622.60

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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.