Home / 10,871.28-14,998.86-6,155.46

Finding the Fourth Proportional to 10,871.28, 14,998.86 and 6,155.46

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Solution

The fourth proportional to 10,871.28, 14,998.86 and 6,155.46 is: 8,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.28 : 14,998.86 = 6,155.46 : x
  2. Step 2: Convert to fraction form
    10,871.28/14,998.86 = 6,155.46/x
  3. Step 3: Cross multiply
    10,871.28x = 14,998.86 × 6,155.46
  4. Step 4: Simplify right side
    10,871.28x = 92,324,882.78
  5. Step 5: Solve for x
    x = 92,324,882.78/10,871.28
  6. Step 6: Final answer
    x = 8,492.55

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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.