Home / 9,181.32-13,777.17-3,915.78

Finding the Fourth Proportional to 9,181.32, 13,777.17 and 3,915.78

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Solution

The fourth proportional to 9,181.32, 13,777.17 and 3,915.78 is: 5,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.32 : 13,777.17 = 3,915.78 : x
  2. Step 2: Convert to fraction form
    9,181.32/13,777.17 = 3,915.78/x
  3. Step 3: Cross multiply
    9,181.32x = 13,777.17 × 3,915.78
  4. Step 4: Simplify right side
    9,181.32x = 53,948,366.74
  5. Step 5: Solve for x
    x = 53,948,366.74/9,181.32
  6. Step 6: Final answer
    x = 5,875.88

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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.