Home / 13,239.12-19,863.81-5,838.35

Finding the Fourth Proportional to 13,239.12, 19,863.81 and 5,838.35

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Solution

The fourth proportional to 13,239.12, 19,863.81 and 5,838.35 is: 8,759.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.12 : 19,863.81 = 5,838.35 : x
  2. Step 2: Convert to fraction form
    13,239.12/19,863.81 = 5,838.35/x
  3. Step 3: Cross multiply
    13,239.12x = 19,863.81 × 5,838.35
  4. Step 4: Simplify right side
    13,239.12x = 115,971,924.77
  5. Step 5: Solve for x
    x = 115,971,924.77/13,239.12
  6. Step 6: Final answer
    x = 8,759.79

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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.