Home / 10,871.40-15,002.46-6,155.70

Finding the Fourth Proportional to 10,871.40, 15,002.46 and 6,155.70

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Solution

The fourth proportional to 10,871.40, 15,002.46 and 6,155.70 is: 8,494.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.40 : 15,002.46 = 6,155.70 : x
  2. Step 2: Convert to fraction form
    10,871.40/15,002.46 = 6,155.70/x
  3. Step 3: Cross multiply
    10,871.40x = 15,002.46 × 6,155.70
  4. Step 4: Simplify right side
    10,871.40x = 92,350,643.02
  5. Step 5: Solve for x
    x = 92,350,643.02/10,871.40
  6. Step 6: Final answer
    x = 8,494.83

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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.