Home / 16,761.57-23,131.78-9,207.81

Finding the Fourth Proportional to 16,761.57, 23,131.78 and 9,207.81

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Solution

The fourth proportional to 16,761.57, 23,131.78 and 9,207.81 is: 12,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,761.57 : 23,131.78 = 9,207.81 : x
  2. Step 2: Convert to fraction form
    16,761.57/23,131.78 = 9,207.81/x
  3. Step 3: Cross multiply
    16,761.57x = 23,131.78 × 9,207.81
  4. Step 4: Simplify right side
    16,761.57x = 212,993,012.18
  5. Step 5: Solve for x
    x = 212,993,012.18/16,761.57
  6. Step 6: Final answer
    x = 12,707.23

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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.