Home / 7,826.18-11,739.28-1,983.24

Finding the Fourth Proportional to 7,826.18, 11,739.28 and 1,983.24

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Solution

The fourth proportional to 7,826.18, 11,739.28 and 1,983.24 is: 2,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.18 : 11,739.28 = 1,983.24 : x
  2. Step 2: Convert to fraction form
    7,826.18/11,739.28 = 1,983.24/x
  3. Step 3: Cross multiply
    7,826.18x = 11,739.28 × 1,983.24
  4. Step 4: Simplify right side
    7,826.18x = 23,281,809.67
  5. Step 5: Solve for x
    x = 23,281,809.67/7,826.18
  6. Step 6: Final answer
    x = 2,974.86

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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.