Home / 10,871.92-15,002.38-6,395.84

Finding the Fourth Proportional to 10,871.92, 15,002.38 and 6,395.84

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Solution

The fourth proportional to 10,871.92, 15,002.38 and 6,395.84 is: 8,825.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.92 : 15,002.38 = 6,395.84 : x
  2. Step 2: Convert to fraction form
    10,871.92/15,002.38 = 6,395.84/x
  3. Step 3: Cross multiply
    10,871.92x = 15,002.38 × 6,395.84
  4. Step 4: Simplify right side
    10,871.92x = 95,952,822.10
  5. Step 5: Solve for x
    x = 95,952,822.10/10,871.92
  6. Step 6: Final answer
    x = 8,825.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.