Home / 10,669.92-15,973.29-7,908.99

Finding the Fourth Proportional to 10,669.92, 15,973.29 and 7,908.99

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Solution

The fourth proportional to 10,669.92, 15,973.29 and 7,908.99 is: 11,840.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.92 : 15,973.29 = 7,908.99 : x
  2. Step 2: Convert to fraction form
    10,669.92/15,973.29 = 7,908.99/x
  3. Step 3: Cross multiply
    10,669.92x = 15,973.29 × 7,908.99
  4. Step 4: Simplify right side
    10,669.92x = 126,332,590.88
  5. Step 5: Solve for x
    x = 126,332,590.88/10,669.92
  6. Step 6: Final answer
    x = 11,840.07

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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.