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Finding the Fourth Proportional to 8,901.08, 12,283.62 and 5,175.08

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Solution

The fourth proportional to 8,901.08, 12,283.62 and 5,175.08 is: 7,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.08 : 12,283.62 = 5,175.08 : x
  2. Step 2: Convert to fraction form
    8,901.08/12,283.62 = 5,175.08/x
  3. Step 3: Cross multiply
    8,901.08x = 12,283.62 × 5,175.08
  4. Step 4: Simplify right side
    8,901.08x = 63,568,716.19
  5. Step 5: Solve for x
    x = 63,568,716.19/8,901.08
  6. Step 6: Final answer
    x = 7,141.69

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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.