Home / 10,999.11-15,178.85-5,963.36

Finding the Fourth Proportional to 10,999.11, 15,178.85 and 5,963.36

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Solution

The fourth proportional to 10,999.11, 15,178.85 and 5,963.36 is: 8,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.11 : 15,178.85 = 5,963.36 : x
  2. Step 2: Convert to fraction form
    10,999.11/15,178.85 = 5,963.36/x
  3. Step 3: Cross multiply
    10,999.11x = 15,178.85 × 5,963.36
  4. Step 4: Simplify right side
    10,999.11x = 90,516,841.22
  5. Step 5: Solve for x
    x = 90,516,841.22/10,999.11
  6. Step 6: Final answer
    x = 8,229.47

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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.