Home / 7,512.20-11,276.40-4,231.70

Finding the Fourth Proportional to 7,512.20, 11,276.40 and 4,231.70

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Solution

The fourth proportional to 7,512.20, 11,276.40 and 4,231.70 is: 6,352.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.20 : 11,276.40 = 4,231.70 : x
  2. Step 2: Convert to fraction form
    7,512.20/11,276.40 = 4,231.70/x
  3. Step 3: Cross multiply
    7,512.20x = 11,276.40 × 4,231.70
  4. Step 4: Simplify right side
    7,512.20x = 47,718,341.88
  5. Step 5: Solve for x
    x = 47,718,341.88/7,512.20
  6. Step 6: Final answer
    x = 6,352.11

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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.