Home / 13,343.62-19,976.54-12,838.18

Finding the Fourth Proportional to 13,343.62, 19,976.54 and 12,838.18

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Solution

The fourth proportional to 13,343.62, 19,976.54 and 12,838.18 is: 19,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.62 : 19,976.54 = 12,838.18 : x
  2. Step 2: Convert to fraction form
    13,343.62/19,976.54 = 12,838.18/x
  3. Step 3: Cross multiply
    13,343.62x = 19,976.54 × 12,838.18
  4. Step 4: Simplify right side
    13,343.62x = 256,462,416.30
  5. Step 5: Solve for x
    x = 256,462,416.30/13,343.62
  6. Step 6: Final answer
    x = 19,219.85

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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.