Home / 8,869.48-12,240.42-5,144.68

Finding the Fourth Proportional to 8,869.48, 12,240.42 and 5,144.68

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Solution

The fourth proportional to 8,869.48, 12,240.42 and 5,144.68 is: 7,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.48 : 12,240.42 = 5,144.68 : x
  2. Step 2: Convert to fraction form
    8,869.48/12,240.42 = 5,144.68/x
  3. Step 3: Cross multiply
    8,869.48x = 12,240.42 × 5,144.68
  4. Step 4: Simplify right side
    8,869.48x = 62,973,043.97
  5. Step 5: Solve for x
    x = 62,973,043.97/8,869.48
  6. Step 6: Final answer
    x = 7,099.97

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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.