Home / 10,120.60-15,181.68-3,883.60

Finding the Fourth Proportional to 10,120.60, 15,181.68 and 3,883.60

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Solution

The fourth proportional to 10,120.60, 15,181.68 and 3,883.60 is: 5,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.60 : 15,181.68 = 3,883.60 : x
  2. Step 2: Convert to fraction form
    10,120.60/15,181.68 = 3,883.60/x
  3. Step 3: Cross multiply
    10,120.60x = 15,181.68 × 3,883.60
  4. Step 4: Simplify right side
    10,120.60x = 58,959,572.45
  5. Step 5: Solve for x
    x = 58,959,572.45/10,120.60
  6. Step 6: Final answer
    x = 5,825.70

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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.