Home / 11,719.18-16,175.87-6,686.11

Finding the Fourth Proportional to 11,719.18, 16,175.87 and 6,686.11

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Solution

The fourth proportional to 11,719.18, 16,175.87 and 6,686.11 is: 9,228.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.18 : 16,175.87 = 6,686.11 : x
  2. Step 2: Convert to fraction form
    11,719.18/16,175.87 = 6,686.11/x
  3. Step 3: Cross multiply
    11,719.18x = 16,175.87 × 6,686.11
  4. Step 4: Simplify right side
    11,719.18x = 108,153,646.17
  5. Step 5: Solve for x
    x = 108,153,646.17/11,719.18
  6. Step 6: Final answer
    x = 9,228.77

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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.