Home / 13,948.33-20,920.96-4,087.71

Finding the Fourth Proportional to 13,948.33, 20,920.96 and 4,087.71

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Solution

The fourth proportional to 13,948.33, 20,920.96 and 4,087.71 is: 6,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.33 : 20,920.96 = 4,087.71 : x
  2. Step 2: Convert to fraction form
    13,948.33/20,920.96 = 4,087.71/x
  3. Step 3: Cross multiply
    13,948.33x = 20,920.96 × 4,087.71
  4. Step 4: Simplify right side
    13,948.33x = 85,518,817.40
  5. Step 5: Solve for x
    x = 85,518,817.40/13,948.33
  6. Step 6: Final answer
    x = 6,131.12

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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.