Home / 13,712.32-20,569.28-3,852.37

Finding the Fourth Proportional to 13,712.32, 20,569.28 and 3,852.37

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Solution

The fourth proportional to 13,712.32, 20,569.28 and 3,852.37 is: 5,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.32 : 20,569.28 = 3,852.37 : x
  2. Step 2: Convert to fraction form
    13,712.32/20,569.28 = 3,852.37/x
  3. Step 3: Cross multiply
    13,712.32x = 20,569.28 × 3,852.37
  4. Step 4: Simplify right side
    13,712.32x = 79,240,442.04
  5. Step 5: Solve for x
    x = 79,240,442.04/13,712.32
  6. Step 6: Final answer
    x = 5,778.78

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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.