Home / 13,838.26-19,097.22-7,870.79

Finding the Fourth Proportional to 13,838.26, 19,097.22 and 7,870.79

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Solution

The fourth proportional to 13,838.26, 19,097.22 and 7,870.79 is: 10,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.26 : 19,097.22 = 7,870.79 : x
  2. Step 2: Convert to fraction form
    13,838.26/19,097.22 = 7,870.79/x
  3. Step 3: Cross multiply
    13,838.26x = 19,097.22 × 7,870.79
  4. Step 4: Simplify right side
    13,838.26x = 150,310,160.46
  5. Step 5: Solve for x
    x = 150,310,160.46/13,838.26
  6. Step 6: Final answer
    x = 10,861.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.