Home / 10,999.55-15,179.40-5,963.77

Finding the Fourth Proportional to 10,999.55, 15,179.40 and 5,963.77

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Solution

The fourth proportional to 10,999.55, 15,179.40 and 5,963.77 is: 8,230.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.55 : 15,179.40 = 5,963.77 : x
  2. Step 2: Convert to fraction form
    10,999.55/15,179.40 = 5,963.77/x
  3. Step 3: Cross multiply
    10,999.55x = 15,179.40 × 5,963.77
  4. Step 4: Simplify right side
    10,999.55x = 90,526,446.95
  5. Step 5: Solve for x
    x = 90,526,446.95/10,999.55
  6. Step 6: Final answer
    x = 8,230.01

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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.