Home / 11,178.33-15,419.24-6,637.92

Finding the Fourth Proportional to 11,178.33, 15,419.24 and 6,637.92

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Solution

The fourth proportional to 11,178.33, 15,419.24 and 6,637.92 is: 9,156.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.33 : 15,419.24 = 6,637.92 : x
  2. Step 2: Convert to fraction form
    11,178.33/15,419.24 = 6,637.92/x
  3. Step 3: Cross multiply
    11,178.33x = 15,419.24 × 6,637.92
  4. Step 4: Simplify right side
    11,178.33x = 102,351,726.89
  5. Step 5: Solve for x
    x = 102,351,726.89/11,178.33
  6. Step 6: Final answer
    x = 9,156.26

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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.