Home / 13,565.29-20,346.39-3,705.37

Finding the Fourth Proportional to 13,565.29, 20,346.39 and 3,705.37

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Solution

The fourth proportional to 13,565.29, 20,346.39 and 3,705.37 is: 5,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.29 : 20,346.39 = 3,705.37 : x
  2. Step 2: Convert to fraction form
    13,565.29/20,346.39 = 3,705.37/x
  3. Step 3: Cross multiply
    13,565.29x = 20,346.39 × 3,705.37
  4. Step 4: Simplify right side
    13,565.29x = 75,390,903.11
  5. Step 5: Solve for x
    x = 75,390,903.11/13,565.29
  6. Step 6: Final answer
    x = 5,557.63

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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.