Home / 13,299.18-19,923.86-11,929.88

Finding the Fourth Proportional to 13,299.18, 19,923.86 and 11,929.88

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Solution

The fourth proportional to 13,299.18, 19,923.86 and 11,929.88 is: 17,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.18 : 19,923.86 = 11,929.88 : x
  2. Step 2: Convert to fraction form
    13,299.18/19,923.86 = 11,929.88/x
  3. Step 3: Cross multiply
    13,299.18x = 19,923.86 × 11,929.88
  4. Step 4: Simplify right side
    13,299.18x = 237,689,099.67
  5. Step 5: Solve for x
    x = 237,689,099.67/13,299.18
  6. Step 6: Final answer
    x = 17,872.46

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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.