Home / 16,986.18-23,443.33-9,912.90

Finding the Fourth Proportional to 16,986.18, 23,443.33 and 9,912.90

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Solution

The fourth proportional to 16,986.18, 23,443.33 and 9,912.90 is: 13,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.18 : 23,443.33 = 9,912.90 : x
  2. Step 2: Convert to fraction form
    16,986.18/23,443.33 = 9,912.90/x
  3. Step 3: Cross multiply
    16,986.18x = 23,443.33 × 9,912.90
  4. Step 4: Simplify right side
    16,986.18x = 232,391,385.96
  5. Step 5: Solve for x
    x = 232,391,385.96/16,986.18
  6. Step 6: Final answer
    x = 13,681.20

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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.