Home / 7,479.12-11,217.46-5,281.20

Finding the Fourth Proportional to 7,479.12, 11,217.46 and 5,281.20

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Solution

The fourth proportional to 7,479.12, 11,217.46 and 5,281.20 is: 7,920.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.12 : 11,217.46 = 5,281.20 : x
  2. Step 2: Convert to fraction form
    7,479.12/11,217.46 = 5,281.20/x
  3. Step 3: Cross multiply
    7,479.12x = 11,217.46 × 5,281.20
  4. Step 4: Simplify right side
    7,479.12x = 59,241,649.75
  5. Step 5: Solve for x
    x = 59,241,649.75/7,479.12
  6. Step 6: Final answer
    x = 7,920.94

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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.