Home / 13,001.45-19,515.65-8,007.39

Finding the Fourth Proportional to 13,001.45, 19,515.65 and 8,007.39

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Solution

The fourth proportional to 13,001.45, 19,515.65 and 8,007.39 is: 12,019.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001.45 : 19,515.65 = 8,007.39 : x
  2. Step 2: Convert to fraction form
    13,001.45/19,515.65 = 8,007.39/x
  3. Step 3: Cross multiply
    13,001.45x = 19,515.65 × 8,007.39
  4. Step 4: Simplify right side
    13,001.45x = 156,269,380.62
  5. Step 5: Solve for x
    x = 156,269,380.62/13,001.45
  6. Step 6: Final answer
    x = 12,019.39

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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.