Home / 10,877.92-15,013.38-6,161.20

Finding the Fourth Proportional to 10,877.92, 15,013.38 and 6,161.20

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Solution

The fourth proportional to 10,877.92, 15,013.38 and 6,161.20 is: 8,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.92 : 15,013.38 = 6,161.20 : x
  2. Step 2: Convert to fraction form
    10,877.92/15,013.38 = 6,161.20/x
  3. Step 3: Cross multiply
    10,877.92x = 15,013.38 × 6,161.20
  4. Step 4: Simplify right side
    10,877.92x = 92,500,436.86
  5. Step 5: Solve for x
    x = 92,500,436.86/10,877.92
  6. Step 6: Final answer
    x = 8,503.50

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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.