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Finding the Fourth Proportional to 12,661.52, 17,465.88 and 8,883.14

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Solution

The fourth proportional to 12,661.52, 17,465.88 and 8,883.14 is: 12,253.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661.52 : 17,465.88 = 8,883.14 : x
  2. Step 2: Convert to fraction form
    12,661.52/17,465.88 = 8,883.14/x
  3. Step 3: Cross multiply
    12,661.52x = 17,465.88 × 8,883.14
  4. Step 4: Simplify right side
    12,661.52x = 155,151,857.26
  5. Step 5: Solve for x
    x = 155,151,857.26/12,661.52
  6. Step 6: Final answer
    x = 12,253.81

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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.