Home / 10,871.28-15,004.17-6,155.46

Finding the Fourth Proportional to 10,871.28, 15,004.17 and 6,155.46

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Solution

The fourth proportional to 10,871.28, 15,004.17 and 6,155.46 is: 8,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.28 : 15,004.17 = 6,155.46 : x
  2. Step 2: Convert to fraction form
    10,871.28/15,004.17 = 6,155.46/x
  3. Step 3: Cross multiply
    10,871.28x = 15,004.17 × 6,155.46
  4. Step 4: Simplify right side
    10,871.28x = 92,357,568.27
  5. Step 5: Solve for x
    x = 92,357,568.27/10,871.28
  6. Step 6: Final answer
    x = 8,495.56

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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.