Home / 10,201.20-14,077.90-5,725.28

Finding the Fourth Proportional to 10,201.20, 14,077.90 and 5,725.28

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Solution

The fourth proportional to 10,201.20, 14,077.90 and 5,725.28 is: 7,901.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,201.20 : 14,077.90 = 5,725.28 : x
  2. Step 2: Convert to fraction form
    10,201.20/14,077.90 = 5,725.28/x
  3. Step 3: Cross multiply
    10,201.20x = 14,077.90 × 5,725.28
  4. Step 4: Simplify right side
    10,201.20x = 80,599,919.31
  5. Step 5: Solve for x
    x = 80,599,919.31/10,201.20
  6. Step 6: Final answer
    x = 7,901.02

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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.