Home / 25,186.05-37,784.55-8,319.78

Finding the Fourth Proportional to 25,186.05, 37,784.55 and 8,319.78

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Solution

The fourth proportional to 25,186.05, 37,784.55 and 8,319.78 is: 12,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,186.05 : 37,784.55 = 8,319.78 : x
  2. Step 2: Convert to fraction form
    25,186.05/37,784.55 = 8,319.78/x
  3. Step 3: Cross multiply
    25,186.05x = 37,784.55 × 8,319.78
  4. Step 4: Simplify right side
    25,186.05x = 314,359,143.40
  5. Step 5: Solve for x
    x = 314,359,143.40/25,186.05
  6. Step 6: Final answer
    x = 12,481.48

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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.