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Finding the Fourth Proportional to 12,284.66, 16,952.90 and 6,979.78

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Solution

The fourth proportional to 12,284.66, 16,952.90 and 6,979.78 is: 9,632.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,284.66 : 16,952.90 = 6,979.78 : x
  2. Step 2: Convert to fraction form
    12,284.66/16,952.90 = 6,979.78/x
  3. Step 3: Cross multiply
    12,284.66x = 16,952.90 × 6,979.78
  4. Step 4: Simplify right side
    12,284.66x = 118,327,512.36
  5. Step 5: Solve for x
    x = 118,327,512.36/12,284.66
  6. Step 6: Final answer
    x = 9,632.14

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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.