Home / 7,486.10-11,231.80-3,325.74

Finding the Fourth Proportional to 7,486.10, 11,231.80 and 3,325.74

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Solution

The fourth proportional to 7,486.10, 11,231.80 and 3,325.74 is: 4,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.10 : 11,231.80 = 3,325.74 : x
  2. Step 2: Convert to fraction form
    7,486.10/11,231.80 = 3,325.74/x
  3. Step 3: Cross multiply
    7,486.10x = 11,231.80 × 3,325.74
  4. Step 4: Simplify right side
    7,486.10x = 37,354,046.53
  5. Step 5: Solve for x
    x = 37,354,046.53/7,486.10
  6. Step 6: Final answer
    x = 4,989.79

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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.