Home / 10,889.27-15,020.78-6,849.66

Finding the Fourth Proportional to 10,889.27, 15,020.78 and 6,849.66

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Solution

The fourth proportional to 10,889.27, 15,020.78 and 6,849.66 is: 9,448.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.27 : 15,020.78 = 6,849.66 : x
  2. Step 2: Convert to fraction form
    10,889.27/15,020.78 = 6,849.66/x
  3. Step 3: Cross multiply
    10,889.27x = 15,020.78 × 6,849.66
  4. Step 4: Simplify right side
    10,889.27x = 102,887,235.93
  5. Step 5: Solve for x
    x = 102,887,235.93/10,889.27
  6. Step 6: Final answer
    x = 9,448.50

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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.