Home / 13,904.82-20,851.65-8,065.53

Finding the Fourth Proportional to 13,904.82, 20,851.65 and 8,065.53

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Solution

The fourth proportional to 13,904.82, 20,851.65 and 8,065.53 is: 12,095.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.82 : 20,851.65 = 8,065.53 : x
  2. Step 2: Convert to fraction form
    13,904.82/20,851.65 = 8,065.53/x
  3. Step 3: Cross multiply
    13,904.82x = 20,851.65 × 8,065.53
  4. Step 4: Simplify right side
    13,904.82x = 168,179,608.62
  5. Step 5: Solve for x
    x = 168,179,608.62/13,904.82
  6. Step 6: Final answer
    x = 12,095.06

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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.