Home / 10,177.78-15,268.85-3,157.64

Finding the Fourth Proportional to 10,177.78, 15,268.85 and 3,157.64

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Solution

The fourth proportional to 10,177.78, 15,268.85 and 3,157.64 is: 4,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,177.78 : 15,268.85 = 3,157.64 : x
  2. Step 2: Convert to fraction form
    10,177.78/15,268.85 = 3,157.64/x
  3. Step 3: Cross multiply
    10,177.78x = 15,268.85 × 3,157.64
  4. Step 4: Simplify right side
    10,177.78x = 48,213,515.73
  5. Step 5: Solve for x
    x = 48,213,515.73/10,177.78
  6. Step 6: Final answer
    x = 4,737.14

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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.