Home / 7,161.22-9,887.30-5,479.62

Finding the Fourth Proportional to 7,161.22, 9,887.30 and 5,479.62

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Solution

The fourth proportional to 7,161.22, 9,887.30 and 5,479.62 is: 7,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.22 : 9,887.30 = 5,479.62 : x
  2. Step 2: Convert to fraction form
    7,161.22/9,887.30 = 5,479.62/x
  3. Step 3: Cross multiply
    7,161.22x = 9,887.30 × 5,479.62
  4. Step 4: Simplify right side
    7,161.22x = 54,178,619.43
  5. Step 5: Solve for x
    x = 54,178,619.43/7,161.22
  6. Step 6: Final answer
    x = 7,565.56

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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.