Home / 8,218.23-12,328.01-3,538.36

Finding the Fourth Proportional to 8,218.23, 12,328.01 and 3,538.36

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Solution

The fourth proportional to 8,218.23, 12,328.01 and 3,538.36 is: 5,307.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.23 : 12,328.01 = 3,538.36 : x
  2. Step 2: Convert to fraction form
    8,218.23/12,328.01 = 3,538.36/x
  3. Step 3: Cross multiply
    8,218.23x = 12,328.01 × 3,538.36
  4. Step 4: Simplify right side
    8,218.23x = 43,620,937.46
  5. Step 5: Solve for x
    x = 43,620,937.46/8,218.23
  6. Step 6: Final answer
    x = 5,307.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.