Home / 10,168.78-15,252.62-2,773.20

Finding the Fourth Proportional to 10,168.78, 15,252.62 and 2,773.20

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Solution

The fourth proportional to 10,168.78, 15,252.62 and 2,773.20 is: 4,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,168.78 : 15,252.62 = 2,773.20 : x
  2. Step 2: Convert to fraction form
    10,168.78/15,252.62 = 2,773.20/x
  3. Step 3: Cross multiply
    10,168.78x = 15,252.62 × 2,773.20
  4. Step 4: Simplify right side
    10,168.78x = 42,298,565.78
  5. Step 5: Solve for x
    x = 42,298,565.78/10,168.78
  6. Step 6: Final answer
    x = 4,159.65

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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.