Home / 10,309.76-15,454.28-4,074.20

Finding the Fourth Proportional to 10,309.76, 15,454.28 and 4,074.20

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Solution

The fourth proportional to 10,309.76, 15,454.28 and 4,074.20 is: 6,107.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.76 : 15,454.28 = 4,074.20 : x
  2. Step 2: Convert to fraction form
    10,309.76/15,454.28 = 4,074.20/x
  3. Step 3: Cross multiply
    10,309.76x = 15,454.28 × 4,074.20
  4. Step 4: Simplify right side
    10,309.76x = 62,963,827.58
  5. Step 5: Solve for x
    x = 62,963,827.58/10,309.76
  6. Step 6: Final answer
    x = 6,107.21

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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.