Home / 8,849.16-12,209.88-5,121

Finding the Fourth Proportional to 8,849.16, 12,209.88 and 5,121

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Solution

The fourth proportional to 8,849.16, 12,209.88 and 5,121 is: 7,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.16 : 12,209.88 = 5,121 : x
  2. Step 2: Convert to fraction form
    8,849.16/12,209.88 = 5,121/x
  3. Step 3: Cross multiply
    8,849.16x = 12,209.88 × 5,121
  4. Step 4: Simplify right side
    8,849.16x = 62,526,795.48
  5. Step 5: Solve for x
    x = 62,526,795.48/8,849.16
  6. Step 6: Final answer
    x = 7,065.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.