Home / 8,975.84-12,387.44-5,251.04

Finding the Fourth Proportional to 8,975.84, 12,387.44 and 5,251.04

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Solution

The fourth proportional to 8,975.84, 12,387.44 and 5,251.04 is: 7,246.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.84 : 12,387.44 = 5,251.04 : x
  2. Step 2: Convert to fraction form
    8,975.84/12,387.44 = 5,251.04/x
  3. Step 3: Cross multiply
    8,975.84x = 12,387.44 × 5,251.04
  4. Step 4: Simplify right side
    8,975.84x = 65,046,942.94
  5. Step 5: Solve for x
    x = 65,046,942.94/8,975.84
  6. Step 6: Final answer
    x = 7,246.89

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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.