Home / 13,253.86-19,875.91-3,891.48

Finding the Fourth Proportional to 13,253.86, 19,875.91 and 3,891.48

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Solution

The fourth proportional to 13,253.86, 19,875.91 and 3,891.48 is: 5,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.86 : 19,875.91 = 3,891.48 : x
  2. Step 2: Convert to fraction form
    13,253.86/19,875.91 = 3,891.48/x
  3. Step 3: Cross multiply
    13,253.86x = 19,875.91 × 3,891.48
  4. Step 4: Simplify right side
    13,253.86x = 77,346,706.25
  5. Step 5: Solve for x
    x = 77,346,706.25/13,253.86
  6. Step 6: Final answer
    x = 5,835.79

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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.