Home / 16,766.79-23,138.12-9,212.91

Finding the Fourth Proportional to 16,766.79, 23,138.12 and 9,212.91

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Solution

The fourth proportional to 16,766.79, 23,138.12 and 9,212.91 is: 12,713.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,766.79 : 23,138.12 = 9,212.91 : x
  2. Step 2: Convert to fraction form
    16,766.79/23,138.12 = 9,212.91/x
  3. Step 3: Cross multiply
    16,766.79x = 23,138.12 × 9,212.91
  4. Step 4: Simplify right side
    16,766.79x = 213,169,371.06
  5. Step 5: Solve for x
    x = 213,169,371.06/16,766.79
  6. Step 6: Final answer
    x = 12,713.79

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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.