Home / 8,927.20-13,390.73-2,687.19

Finding the Fourth Proportional to 8,927.20, 13,390.73 and 2,687.19

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Solution

The fourth proportional to 8,927.20, 13,390.73 and 2,687.19 is: 4,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.20 : 13,390.73 = 2,687.19 : x
  2. Step 2: Convert to fraction form
    8,927.20/13,390.73 = 2,687.19/x
  3. Step 3: Cross multiply
    8,927.20x = 13,390.73 × 2,687.19
  4. Step 4: Simplify right side
    8,927.20x = 35,983,435.75
  5. Step 5: Solve for x
    x = 35,983,435.75/8,927.20
  6. Step 6: Final answer
    x = 4,030.76

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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.