Home / 9,234.15-12,742.20-5,255.07

Finding the Fourth Proportional to 9,234.15, 12,742.20 and 5,255.07

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Solution

The fourth proportional to 9,234.15, 12,742.20 and 5,255.07 is: 7,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,234.15 : 12,742.20 = 5,255.07 : x
  2. Step 2: Convert to fraction form
    9,234.15/12,742.20 = 5,255.07/x
  3. Step 3: Cross multiply
    9,234.15x = 12,742.20 × 5,255.07
  4. Step 4: Simplify right side
    9,234.15x = 66,961,152.95
  5. Step 5: Solve for x
    x = 66,961,152.95/9,234.15
  6. Step 6: Final answer
    x = 7,251.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.