Home / 13,920.54-20,881.62-4,561.53

Finding the Fourth Proportional to 13,920.54, 20,881.62 and 4,561.53

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Solution

The fourth proportional to 13,920.54, 20,881.62 and 4,561.53 is: 6,842.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.54 : 20,881.62 = 4,561.53 : x
  2. Step 2: Convert to fraction form
    13,920.54/20,881.62 = 4,561.53/x
  3. Step 3: Cross multiply
    13,920.54x = 20,881.62 × 4,561.53
  4. Step 4: Simplify right side
    13,920.54x = 95,252,136.08
  5. Step 5: Solve for x
    x = 95,252,136.08/13,920.54
  6. Step 6: Final answer
    x = 6,842.56

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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.