Home / 25,657.20-38,486.87-8,126.64

Finding the Fourth Proportional to 25,657.20, 38,486.87 and 8,126.64

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Solution

The fourth proportional to 25,657.20, 38,486.87 and 8,126.64 is: 12,190.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,657.20 : 38,486.87 = 8,126.64 : x
  2. Step 2: Convert to fraction form
    25,657.20/38,486.87 = 8,126.64/x
  3. Step 3: Cross multiply
    25,657.20x = 38,486.87 × 8,126.64
  4. Step 4: Simplify right side
    25,657.20x = 312,768,765.10
  5. Step 5: Solve for x
    x = 312,768,765.10/25,657.20
  6. Step 6: Final answer
    x = 12,190.29

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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.