Home / 14,421.74-21,640.30-5,656.73

Finding the Fourth Proportional to 14,421.74, 21,640.30 and 5,656.73

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Solution

The fourth proportional to 14,421.74, 21,640.30 and 5,656.73 is: 8,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.74 : 21,640.30 = 5,656.73 : x
  2. Step 2: Convert to fraction form
    14,421.74/21,640.30 = 5,656.73/x
  3. Step 3: Cross multiply
    14,421.74x = 21,640.30 × 5,656.73
  4. Step 4: Simplify right side
    14,421.74x = 122,413,211.88
  5. Step 5: Solve for x
    x = 122,413,211.88/14,421.74
  6. Step 6: Final answer
    x = 8,488.11

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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.