Home / 15,793.76-21,788.52-10,118.36

Finding the Fourth Proportional to 15,793.76, 21,788.52 and 10,118.36

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Solution

The fourth proportional to 15,793.76, 21,788.52 and 10,118.36 is: 13,958.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.76 : 21,788.52 = 10,118.36 : x
  2. Step 2: Convert to fraction form
    15,793.76/21,788.52 = 10,118.36/x
  3. Step 3: Cross multiply
    15,793.76x = 21,788.52 × 10,118.36
  4. Step 4: Simplify right side
    15,793.76x = 220,464,089.23
  5. Step 5: Solve for x
    x = 220,464,089.23/15,793.76
  6. Step 6: Final answer
    x = 13,958.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.