Home / 13,387.05-20,093.00-9,642.69

Finding the Fourth Proportional to 13,387.05, 20,093.00 and 9,642.69

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Solution

The fourth proportional to 13,387.05, 20,093.00 and 9,642.69 is: 14,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.05 : 20,093.00 = 9,642.69 : x
  2. Step 2: Convert to fraction form
    13,387.05/20,093.00 = 9,642.69/x
  3. Step 3: Cross multiply
    13,387.05x = 20,093.00 × 9,642.69
  4. Step 4: Simplify right side
    13,387.05x = 193,750,521.96
  5. Step 5: Solve for x
    x = 193,750,521.96/13,387.05
  6. Step 6: Final answer
    x = 14,472.98

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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.