Home / 13,371.66-18,461.82-8,337.90

Finding the Fourth Proportional to 13,371.66, 18,461.82 and 8,337.90

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Solution

The fourth proportional to 13,371.66, 18,461.82 and 8,337.90 is: 11,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.66 : 18,461.82 = 8,337.90 : x
  2. Step 2: Convert to fraction form
    13,371.66/18,461.82 = 8,337.90/x
  3. Step 3: Cross multiply
    13,371.66x = 18,461.82 × 8,337.90
  4. Step 4: Simplify right side
    13,371.66x = 153,932,808.98
  5. Step 5: Solve for x
    x = 153,932,808.98/13,371.66
  6. Step 6: Final answer
    x = 11,511.87

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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.