Home / 10,656.20-15,982.86-2,865.48

Finding the Fourth Proportional to 10,656.20, 15,982.86 and 2,865.48

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Solution

The fourth proportional to 10,656.20, 15,982.86 and 2,865.48 is: 4,297.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.20 : 15,982.86 = 2,865.48 : x
  2. Step 2: Convert to fraction form
    10,656.20/15,982.86 = 2,865.48/x
  3. Step 3: Cross multiply
    10,656.20x = 15,982.86 × 2,865.48
  4. Step 4: Simplify right side
    10,656.20x = 45,798,565.67
  5. Step 5: Solve for x
    x = 45,798,565.67/10,656.20
  6. Step 6: Final answer
    x = 4,297.83

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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.