Home / 7,851.24-11,770.68-5,378.52

Finding the Fourth Proportional to 7,851.24, 11,770.68 and 5,378.52

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Solution

The fourth proportional to 7,851.24, 11,770.68 and 5,378.52 is: 8,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.24 : 11,770.68 = 5,378.52 : x
  2. Step 2: Convert to fraction form
    7,851.24/11,770.68 = 5,378.52/x
  3. Step 3: Cross multiply
    7,851.24x = 11,770.68 × 5,378.52
  4. Step 4: Simplify right side
    7,851.24x = 63,308,837.79
  5. Step 5: Solve for x
    x = 63,308,837.79/7,851.24
  6. Step 6: Final answer
    x = 8,063.55

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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.