Home / 7,854.20-11,785.28-5,223.53

Finding the Fourth Proportional to 7,854.20, 11,785.28 and 5,223.53

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Solution

The fourth proportional to 7,854.20, 11,785.28 and 5,223.53 is: 7,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.20 : 11,785.28 = 5,223.53 : x
  2. Step 2: Convert to fraction form
    7,854.20/11,785.28 = 5,223.53/x
  3. Step 3: Cross multiply
    7,854.20x = 11,785.28 × 5,223.53
  4. Step 4: Simplify right side
    7,854.20x = 61,560,763.64
  5. Step 5: Solve for x
    x = 61,560,763.64/7,854.20
  6. Step 6: Final answer
    x = 7,837.94

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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.