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Finding the Fourth Proportional to 15,910.40, 23,865.60 and 8,134.40

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Solution

The fourth proportional to 15,910.40, 23,865.60 and 8,134.40 is: 12,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.40 : 23,865.60 = 8,134.40 : x
  2. Step 2: Convert to fraction form
    15,910.40/23,865.60 = 8,134.40/x
  3. Step 3: Cross multiply
    15,910.40x = 23,865.60 × 8,134.40
  4. Step 4: Simplify right side
    15,910.40x = 194,132,336.64
  5. Step 5: Solve for x
    x = 194,132,336.64/15,910.40
  6. Step 6: Final answer
    x = 12,201.60

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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.