Home / 11,135.27-15,368.06-6,661.49

Finding the Fourth Proportional to 11,135.27, 15,368.06 and 6,661.49

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Solution

The fourth proportional to 11,135.27, 15,368.06 and 6,661.49 is: 9,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.27 : 15,368.06 = 6,661.49 : x
  2. Step 2: Convert to fraction form
    11,135.27/15,368.06 = 6,661.49/x
  3. Step 3: Cross multiply
    11,135.27x = 15,368.06 × 6,661.49
  4. Step 4: Simplify right side
    11,135.27x = 102,374,117.82
  5. Step 5: Solve for x
    x = 102,374,117.82/11,135.27
  6. Step 6: Final answer
    x = 9,193.68

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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.