Home / 10,876.20-15,016.37-8,353.80

Finding the Fourth Proportional to 10,876.20, 15,016.37 and 8,353.80

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Solution

The fourth proportional to 10,876.20, 15,016.37 and 8,353.80 is: 11,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.20 : 15,016.37 = 8,353.80 : x
  2. Step 2: Convert to fraction form
    10,876.20/15,016.37 = 8,353.80/x
  3. Step 3: Cross multiply
    10,876.20x = 15,016.37 × 8,353.80
  4. Step 4: Simplify right side
    10,876.20x = 125,443,751.71
  5. Step 5: Solve for x
    x = 125,443,751.71/10,876.20
  6. Step 6: Final answer
    x = 11,533.78

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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.