Home / 8,922.40-13,386.04-3,079.87

Finding the Fourth Proportional to 8,922.40, 13,386.04 and 3,079.87

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Solution

The fourth proportional to 8,922.40, 13,386.04 and 3,079.87 is: 4,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.40 : 13,386.04 = 3,079.87 : x
  2. Step 2: Convert to fraction form
    8,922.40/13,386.04 = 3,079.87/x
  3. Step 3: Cross multiply
    8,922.40x = 13,386.04 × 3,079.87
  4. Step 4: Simplify right side
    8,922.40x = 41,227,263.01
  5. Step 5: Solve for x
    x = 41,227,263.01/8,922.40
  6. Step 6: Final answer
    x = 4,620.65

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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.