Home / 18,278.60-27,407.51-7,179.23

Finding the Fourth Proportional to 18,278.60, 27,407.51 and 7,179.23

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Solution

The fourth proportional to 18,278.60, 27,407.51 and 7,179.23 is: 10,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.60 : 27,407.51 = 7,179.23 : x
  2. Step 2: Convert to fraction form
    18,278.60/27,407.51 = 7,179.23/x
  3. Step 3: Cross multiply
    18,278.60x = 27,407.51 × 7,179.23
  4. Step 4: Simplify right side
    18,278.60x = 196,764,818.02
  5. Step 5: Solve for x
    x = 196,764,818.02/18,278.60
  6. Step 6: Final answer
    x = 10,764.76

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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.