Home / 10,309.09-15,456.91-6,788.44

Finding the Fourth Proportional to 10,309.09, 15,456.91 and 6,788.44

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Solution

The fourth proportional to 10,309.09, 15,456.91 and 6,788.44 is: 10,178.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.09 : 15,456.91 = 6,788.44 : x
  2. Step 2: Convert to fraction form
    10,309.09/15,456.91 = 6,788.44/x
  3. Step 3: Cross multiply
    10,309.09x = 15,456.91 × 6,788.44
  4. Step 4: Simplify right side
    10,309.09x = 104,928,306.12
  5. Step 5: Solve for x
    x = 104,928,306.12/10,309.09
  6. Step 6: Final answer
    x = 10,178.23

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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.