Home / 7,518.64-11,287.68-6,371.68

Finding the Fourth Proportional to 7,518.64, 11,287.68 and 6,371.68

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Solution

The fourth proportional to 7,518.64, 11,287.68 and 6,371.68 is: 9,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.64 : 11,287.68 = 6,371.68 : x
  2. Step 2: Convert to fraction form
    7,518.64/11,287.68 = 6,371.68/x
  3. Step 3: Cross multiply
    7,518.64x = 11,287.68 × 6,371.68
  4. Step 4: Simplify right side
    7,518.64x = 71,921,484.90
  5. Step 5: Solve for x
    x = 71,921,484.90/7,518.64
  6. Step 6: Final answer
    x = 9,565.76

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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.