Home / 11,331.11-15,637.92-6,616.91

Finding the Fourth Proportional to 11,331.11, 15,637.92 and 6,616.91

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Solution

The fourth proportional to 11,331.11, 15,637.92 and 6,616.91 is: 9,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.11 : 15,637.92 = 6,616.91 : x
  2. Step 2: Convert to fraction form
    11,331.11/15,637.92 = 6,616.91/x
  3. Step 3: Cross multiply
    11,331.11x = 15,637.92 × 6,616.91
  4. Step 4: Simplify right side
    11,331.11x = 103,474,709.23
  5. Step 5: Solve for x
    x = 103,474,709.23/11,331.11
  6. Step 6: Final answer
    x = 9,131.91

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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.