Home / 13,587.03-20,378.36-3,724

Finding the Fourth Proportional to 13,587.03, 20,378.36 and 3,724

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Solution

The fourth proportional to 13,587.03, 20,378.36 and 3,724 is: 5,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.03 : 20,378.36 = 3,724 : x
  2. Step 2: Convert to fraction form
    13,587.03/20,378.36 = 3,724/x
  3. Step 3: Cross multiply
    13,587.03x = 20,378.36 × 3,724
  4. Step 4: Simplify right side
    13,587.03x = 75,889,012.64
  5. Step 5: Solve for x
    x = 75,889,012.64/13,587.03
  6. Step 6: Final answer
    x = 5,585.40

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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.