Home / 10,268.25-15,390.36-4,343.91

Finding the Fourth Proportional to 10,268.25, 15,390.36 and 4,343.91

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Solution

The fourth proportional to 10,268.25, 15,390.36 and 4,343.91 is: 6,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,268.25 : 15,390.36 = 4,343.91 : x
  2. Step 2: Convert to fraction form
    10,268.25/15,390.36 = 4,343.91/x
  3. Step 3: Cross multiply
    10,268.25x = 15,390.36 × 4,343.91
  4. Step 4: Simplify right side
    10,268.25x = 66,854,338.71
  5. Step 5: Solve for x
    x = 66,854,338.71/10,268.25
  6. Step 6: Final answer
    x = 6,510.78

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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.