Home / 10,876.01-15,003.09-8,218.80

Finding the Fourth Proportional to 10,876.01, 15,003.09 and 8,218.80

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Solution

The fourth proportional to 10,876.01, 15,003.09 and 8,218.80 is: 11,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.01 : 15,003.09 = 8,218.80 : x
  2. Step 2: Convert to fraction form
    10,876.01/15,003.09 = 8,218.80/x
  3. Step 3: Cross multiply
    10,876.01x = 15,003.09 × 8,218.80
  4. Step 4: Simplify right side
    10,876.01x = 123,307,396.09
  5. Step 5: Solve for x
    x = 123,307,396.09/10,876.01
  6. Step 6: Final answer
    x = 11,337.56

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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.