Home / 7,621.85-11,432.78-3,236.24

Finding the Fourth Proportional to 7,621.85, 11,432.78 and 3,236.24

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Solution

The fourth proportional to 7,621.85, 11,432.78 and 3,236.24 is: 4,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.85 : 11,432.78 = 3,236.24 : x
  2. Step 2: Convert to fraction form
    7,621.85/11,432.78 = 3,236.24/x
  3. Step 3: Cross multiply
    7,621.85x = 11,432.78 × 3,236.24
  4. Step 4: Simplify right side
    7,621.85x = 36,999,146.60
  5. Step 5: Solve for x
    x = 36,999,146.60/7,621.85
  6. Step 6: Final answer
    x = 4,854.36

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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.