Home / 16,939.75-23,376.81-9,386.11

Finding the Fourth Proportional to 16,939.75, 23,376.81 and 9,386.11

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Solution

The fourth proportional to 16,939.75, 23,376.81 and 9,386.11 is: 12,952.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.75 : 23,376.81 = 9,386.11 : x
  2. Step 2: Convert to fraction form
    16,939.75/23,376.81 = 9,386.11/x
  3. Step 3: Cross multiply
    16,939.75x = 23,376.81 × 9,386.11
  4. Step 4: Simplify right side
    16,939.75x = 219,417,310.11
  5. Step 5: Solve for x
    x = 219,417,310.11/16,939.75
  6. Step 6: Final answer
    x = 12,952.81

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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.