Home / 12,112.25-16,711.97-9,282.51

Finding the Fourth Proportional to 12,112.25, 16,711.97 and 9,282.51

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Solution

The fourth proportional to 12,112.25, 16,711.97 and 9,282.51 is: 12,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.25 : 16,711.97 = 9,282.51 : x
  2. Step 2: Convert to fraction form
    12,112.25/16,711.97 = 9,282.51/x
  3. Step 3: Cross multiply
    12,112.25x = 16,711.97 × 9,282.51
  4. Step 4: Simplify right side
    12,112.25x = 155,128,982.23
  5. Step 5: Solve for x
    x = 155,128,982.23/12,112.25
  6. Step 6: Final answer
    x = 12,807.62

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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.