Home / 16,979.73-23,434.82-9,428.47

Finding the Fourth Proportional to 16,979.73, 23,434.82 and 9,428.47

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Solution

The fourth proportional to 16,979.73, 23,434.82 and 9,428.47 is: 13,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.73 : 23,434.82 = 9,428.47 : x
  2. Step 2: Convert to fraction form
    16,979.73/23,434.82 = 9,428.47/x
  3. Step 3: Cross multiply
    16,979.73x = 23,434.82 × 9,428.47
  4. Step 4: Simplify right side
    16,979.73x = 220,954,497.33
  5. Step 5: Solve for x
    x = 220,954,497.33/16,979.73
  6. Step 6: Final answer
    x = 13,012.84

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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.