Home / 10,119.02-15,177.78-3,879.60

Finding the Fourth Proportional to 10,119.02, 15,177.78 and 3,879.60

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Solution

The fourth proportional to 10,119.02, 15,177.78 and 3,879.60 is: 5,819.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.02 : 15,177.78 = 3,879.60 : x
  2. Step 2: Convert to fraction form
    10,119.02/15,177.78 = 3,879.60/x
  3. Step 3: Cross multiply
    10,119.02x = 15,177.78 × 3,879.60
  4. Step 4: Simplify right side
    10,119.02x = 58,883,715.29
  5. Step 5: Solve for x
    x = 58,883,715.29/10,119.02
  6. Step 6: Final answer
    x = 5,819.11

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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.