Home / 10,127.28-13,976.34-5,651.90

Finding the Fourth Proportional to 10,127.28, 13,976.34 and 5,651.90

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Solution

The fourth proportional to 10,127.28, 13,976.34 and 5,651.90 is: 7,800.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.28 : 13,976.34 = 5,651.90 : x
  2. Step 2: Convert to fraction form
    10,127.28/13,976.34 = 5,651.90/x
  3. Step 3: Cross multiply
    10,127.28x = 13,976.34 × 5,651.90
  4. Step 4: Simplify right side
    10,127.28x = 78,992,876.05
  5. Step 5: Solve for x
    x = 78,992,876.05/10,127.28
  6. Step 6: Final answer
    x = 7,800.01

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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.