Home / 18,276.73-27,416.46-5,130.12

Finding the Fourth Proportional to 18,276.73, 27,416.46 and 5,130.12

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Solution

The fourth proportional to 18,276.73, 27,416.46 and 5,130.12 is: 7,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.73 : 27,416.46 = 5,130.12 : x
  2. Step 2: Convert to fraction form
    18,276.73/27,416.46 = 5,130.12/x
  3. Step 3: Cross multiply
    18,276.73x = 27,416.46 × 5,130.12
  4. Step 4: Simplify right side
    18,276.73x = 140,649,729.78
  5. Step 5: Solve for x
    x = 140,649,729.78/18,276.73
  6. Step 6: Final answer
    x = 7,695.56

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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.