Home / 16,979.45-23,431.79-9,426.33

Finding the Fourth Proportional to 16,979.45, 23,431.79 and 9,426.33

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Solution

The fourth proportional to 16,979.45, 23,431.79 and 9,426.33 is: 13,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.45 : 23,431.79 = 9,426.33 : x
  2. Step 2: Convert to fraction form
    16,979.45/23,431.79 = 9,426.33/x
  3. Step 3: Cross multiply
    16,979.45x = 23,431.79 × 9,426.33
  4. Step 4: Simplify right side
    16,979.45x = 220,875,737.90
  5. Step 5: Solve for x
    x = 220,875,737.90/16,979.45
  6. Step 6: Final answer
    x = 13,008.41

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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.