Home / 10,411.47-15,617.21-2,620.28

Finding the Fourth Proportional to 10,411.47, 15,617.21 and 2,620.28

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Solution

The fourth proportional to 10,411.47, 15,617.21 and 2,620.28 is: 3,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.47 : 15,617.21 = 2,620.28 : x
  2. Step 2: Convert to fraction form
    10,411.47/15,617.21 = 2,620.28/x
  3. Step 3: Cross multiply
    10,411.47x = 15,617.21 × 2,620.28
  4. Step 4: Simplify right side
    10,411.47x = 40,921,449.92
  5. Step 5: Solve for x
    x = 40,921,449.92/10,411.47
  6. Step 6: Final answer
    x = 3,930.42

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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.