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Finding the Fourth Proportional to 11,881.65, 16,400.32 and 6,849.23

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Solution

The fourth proportional to 11,881.65, 16,400.32 and 6,849.23 is: 9,454.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.65 : 16,400.32 = 6,849.23 : x
  2. Step 2: Convert to fraction form
    11,881.65/16,400.32 = 6,849.23/x
  3. Step 3: Cross multiply
    11,881.65x = 16,400.32 × 6,849.23
  4. Step 4: Simplify right side
    11,881.65x = 112,329,563.75
  5. Step 5: Solve for x
    x = 112,329,563.75/11,881.65
  6. Step 6: Final answer
    x = 9,454.04

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1.5x scale

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.