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Finding the Fourth Proportional to 8,868, 12,240.08 and 5,144.16

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Solution

The fourth proportional to 8,868, 12,240.08 and 5,144.16 is: 7,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868 : 12,240.08 = 5,144.16 : x
  2. Step 2: Convert to fraction form
    8,868/12,240.08 = 5,144.16/x
  3. Step 3: Cross multiply
    8,868x = 12,240.08 × 5,144.16
  4. Step 4: Simplify right side
    8,868x = 62,964,929.93
  5. Step 5: Solve for x
    x = 62,964,929.93/8,868
  6. Step 6: Final answer
    x = 7,100.24

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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.