Home / 10,400.80-15,601.26-3,475.28

Finding the Fourth Proportional to 10,400.80, 15,601.26 and 3,475.28

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Solution

The fourth proportional to 10,400.80, 15,601.26 and 3,475.28 is: 5,212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.80 : 15,601.26 = 3,475.28 : x
  2. Step 2: Convert to fraction form
    10,400.80/15,601.26 = 3,475.28/x
  3. Step 3: Cross multiply
    10,400.80x = 15,601.26 × 3,475.28
  4. Step 4: Simplify right side
    10,400.80x = 54,218,746.85
  5. Step 5: Solve for x
    x = 54,218,746.85/10,400.80
  6. Step 6: Final answer
    x = 5,212.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.