Home / 10,521.27-15,791.10-4,284.69

Finding the Fourth Proportional to 10,521.27, 15,791.10 and 4,284.69

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Solution

The fourth proportional to 10,521.27, 15,791.10 and 4,284.69 is: 6,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.27 : 15,791.10 = 4,284.69 : x
  2. Step 2: Convert to fraction form
    10,521.27/15,791.10 = 4,284.69/x
  3. Step 3: Cross multiply
    10,521.27x = 15,791.10 × 4,284.69
  4. Step 4: Simplify right side
    10,521.27x = 67,659,968.26
  5. Step 5: Solve for x
    x = 67,659,968.26/10,521.27
  6. Step 6: Final answer
    x = 6,430.78

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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.