Home / 13,221.49-19,829.98-4,336.65

Finding the Fourth Proportional to 13,221.49, 19,829.98 and 4,336.65

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Solution

The fourth proportional to 13,221.49, 19,829.98 and 4,336.65 is: 6,504.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.49 : 19,829.98 = 4,336.65 : x
  2. Step 2: Convert to fraction form
    13,221.49/19,829.98 = 4,336.65/x
  3. Step 3: Cross multiply
    13,221.49x = 19,829.98 × 4,336.65
  4. Step 4: Simplify right side
    13,221.49x = 85,995,682.77
  5. Step 5: Solve for x
    x = 85,995,682.77/13,221.49
  6. Step 6: Final answer
    x = 6,504.24

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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.