Home / 10,911.11-15,058.61-6,131.06

Finding the Fourth Proportional to 10,911.11, 15,058.61 and 6,131.06

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Solution

The fourth proportional to 10,911.11, 15,058.61 and 6,131.06 is: 8,461.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.11 : 15,058.61 = 6,131.06 : x
  2. Step 2: Convert to fraction form
    10,911.11/15,058.61 = 6,131.06/x
  3. Step 3: Cross multiply
    10,911.11x = 15,058.61 × 6,131.06
  4. Step 4: Simplify right side
    10,911.11x = 92,325,214.94
  5. Step 5: Solve for x
    x = 92,325,214.94/10,911.11
  6. Step 6: Final answer
    x = 8,461.58

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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.