Home / 8,839.68-12,195.84-5,111.04

Finding the Fourth Proportional to 8,839.68, 12,195.84 and 5,111.04

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Solution

The fourth proportional to 8,839.68, 12,195.84 and 5,111.04 is: 7,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.68 : 12,195.84 = 5,111.04 : x
  2. Step 2: Convert to fraction form
    8,839.68/12,195.84 = 5,111.04/x
  3. Step 3: Cross multiply
    8,839.68x = 12,195.84 × 5,111.04
  4. Step 4: Simplify right side
    8,839.68x = 62,333,426.07
  5. Step 5: Solve for x
    x = 62,333,426.07/8,839.68
  6. Step 6: Final answer
    x = 7,051.55

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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.