Home / 10,305.78-15,452.16-3,730.74

Finding the Fourth Proportional to 10,305.78, 15,452.16 and 3,730.74

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Solution

The fourth proportional to 10,305.78, 15,452.16 and 3,730.74 is: 5,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.78 : 15,452.16 = 3,730.74 : x
  2. Step 2: Convert to fraction form
    10,305.78/15,452.16 = 3,730.74/x
  3. Step 3: Cross multiply
    10,305.78x = 15,452.16 × 3,730.74
  4. Step 4: Simplify right side
    10,305.78x = 57,647,991.40
  5. Step 5: Solve for x
    x = 57,647,991.40/10,305.78
  6. Step 6: Final answer
    x = 5,593.75

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1.5x scale

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.