Home / 18,246.10-27,358.20-7,139.56

Finding the Fourth Proportional to 18,246.10, 27,358.20 and 7,139.56

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Solution

The fourth proportional to 18,246.10, 27,358.20 and 7,139.56 is: 10,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.10 : 27,358.20 = 7,139.56 : x
  2. Step 2: Convert to fraction form
    18,246.10/27,358.20 = 7,139.56/x
  3. Step 3: Cross multiply
    18,246.10x = 27,358.20 × 7,139.56
  4. Step 4: Simplify right side
    18,246.10x = 195,325,510.39
  5. Step 5: Solve for x
    x = 195,325,510.39/18,246.10
  6. Step 6: Final answer
    x = 10,705.06

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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.