Home / 13,587.05-20,378.39-3,724.04

Finding the Fourth Proportional to 13,587.05, 20,378.39 and 3,724.04

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Solution

The fourth proportional to 13,587.05, 20,378.39 and 3,724.04 is: 5,585.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.05 : 20,378.39 = 3,724.04 : x
  2. Step 2: Convert to fraction form
    13,587.05/20,378.39 = 3,724.04/x
  3. Step 3: Cross multiply
    13,587.05x = 20,378.39 × 3,724.04
  4. Step 4: Simplify right side
    13,587.05x = 75,889,837.60
  5. Step 5: Solve for x
    x = 75,889,837.60/13,587.05
  6. Step 6: Final answer
    x = 5,585.46

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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.