Home / 18,776.24-28,155.35-7,082.00

Finding the Fourth Proportional to 18,776.24, 28,155.35 and 7,082.00

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Solution

The fourth proportional to 18,776.24, 28,155.35 and 7,082.00 is: 10,619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.24 : 28,155.35 = 7,082.00 : x
  2. Step 2: Convert to fraction form
    18,776.24/28,155.35 = 7,082.00/x
  3. Step 3: Cross multiply
    18,776.24x = 28,155.35 × 7,082.00
  4. Step 4: Simplify right side
    18,776.24x = 199,396,065.63
  5. Step 5: Solve for x
    x = 199,396,065.63/18,776.24
  6. Step 6: Final answer
    x = 10,619.60

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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.