Home / 14,146.75-21,220.11-3,758.50

Finding the Fourth Proportional to 14,146.75, 21,220.11 and 3,758.50

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Solution

The fourth proportional to 14,146.75, 21,220.11 and 3,758.50 is: 5,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.75 : 21,220.11 = 3,758.50 : x
  2. Step 2: Convert to fraction form
    14,146.75/21,220.11 = 3,758.50/x
  3. Step 3: Cross multiply
    14,146.75x = 21,220.11 × 3,758.50
  4. Step 4: Simplify right side
    14,146.75x = 79,755,809.96
  5. Step 5: Solve for x
    x = 79,755,809.96/14,146.75
  6. Step 6: Final answer
    x = 5,637.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.