Home / 25,286.10-37,929.15-8,640.60

Finding the Fourth Proportional to 25,286.10, 37,929.15 and 8,640.60

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Solution

The fourth proportional to 25,286.10, 37,929.15 and 8,640.60 is: 12,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.10 : 37,929.15 = 8,640.60 : x
  2. Step 2: Convert to fraction form
    25,286.10/37,929.15 = 8,640.60/x
  3. Step 3: Cross multiply
    25,286.10x = 37,929.15 × 8,640.60
  4. Step 4: Simplify right side
    25,286.10x = 327,730,613.49
  5. Step 5: Solve for x
    x = 327,730,613.49/25,286.10
  6. Step 6: Final answer
    x = 12,960.90

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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.