Home / 13,188.78-19,796.85-8,836.65

Finding the Fourth Proportional to 13,188.78, 19,796.85 and 8,836.65

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Solution

The fourth proportional to 13,188.78, 19,796.85 and 8,836.65 is: 13,264.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.78 : 19,796.85 = 8,836.65 : x
  2. Step 2: Convert to fraction form
    13,188.78/19,796.85 = 8,836.65/x
  3. Step 3: Cross multiply
    13,188.78x = 19,796.85 × 8,836.65
  4. Step 4: Simplify right side
    13,188.78x = 174,937,834.55
  5. Step 5: Solve for x
    x = 174,937,834.55/13,188.78
  6. Step 6: Final answer
    x = 13,264.14

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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.