Home / 16,936.40-23,370.12-9,381.68

Finding the Fourth Proportional to 16,936.40, 23,370.12 and 9,381.68

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Solution

The fourth proportional to 16,936.40, 23,370.12 and 9,381.68 is: 12,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,936.40 : 23,370.12 = 9,381.68 : x
  2. Step 2: Convert to fraction form
    16,936.40/23,370.12 = 9,381.68/x
  3. Step 3: Cross multiply
    16,936.40x = 23,370.12 × 9,381.68
  4. Step 4: Simplify right side
    16,936.40x = 219,250,987.40
  5. Step 5: Solve for x
    x = 219,250,987.40/16,936.40
  6. Step 6: Final answer
    x = 12,945.55

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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.