Home / 10,983.81-15,156.94-6,791.25

Finding the Fourth Proportional to 10,983.81, 15,156.94 and 6,791.25

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Solution

The fourth proportional to 10,983.81, 15,156.94 and 6,791.25 is: 9,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.81 : 15,156.94 = 6,791.25 : x
  2. Step 2: Convert to fraction form
    10,983.81/15,156.94 = 6,791.25/x
  3. Step 3: Cross multiply
    10,983.81x = 15,156.94 × 6,791.25
  4. Step 4: Simplify right side
    10,983.81x = 102,934,568.78
  5. Step 5: Solve for x
    x = 102,934,568.78/10,983.81
  6. Step 6: Final answer
    x = 9,371.48

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1.5x scale

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.