Home / 13,239.61-19,864.56-5,838.85

Finding the Fourth Proportional to 13,239.61, 19,864.56 and 5,838.85

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Solution

The fourth proportional to 13,239.61, 19,864.56 and 5,838.85 is: 8,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.61 : 19,864.56 = 5,838.85 : x
  2. Step 2: Convert to fraction form
    13,239.61/19,864.56 = 5,838.85/x
  3. Step 3: Cross multiply
    13,239.61x = 19,864.56 × 5,838.85
  4. Step 4: Simplify right side
    13,239.61x = 115,986,186.16
  5. Step 5: Solve for x
    x = 115,986,186.16/13,239.61
  6. Step 6: Final answer
    x = 8,760.54

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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.