Home / 18,765.48-28,155.66-7,082.04

Finding the Fourth Proportional to 18,765.48, 28,155.66 and 7,082.04

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Solution

The fourth proportional to 18,765.48, 28,155.66 and 7,082.04 is: 10,625.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.48 : 28,155.66 = 7,082.04 : x
  2. Step 2: Convert to fraction form
    18,765.48/28,155.66 = 7,082.04/x
  3. Step 3: Cross multiply
    18,765.48x = 28,155.66 × 7,082.04
  4. Step 4: Simplify right side
    18,765.48x = 199,399,510.35
  5. Step 5: Solve for x
    x = 199,399,510.35/18,765.48
  6. Step 6: Final answer
    x = 10,625.87

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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.