Home / 13,583.90-20,373.67-3,720.88

Finding the Fourth Proportional to 13,583.90, 20,373.67 and 3,720.88

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Solution

The fourth proportional to 13,583.90, 20,373.67 and 3,720.88 is: 5,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.90 : 20,373.67 = 3,720.88 : x
  2. Step 2: Convert to fraction form
    13,583.90/20,373.67 = 3,720.88/x
  3. Step 3: Cross multiply
    13,583.90x = 20,373.67 × 3,720.88
  4. Step 4: Simplify right side
    13,583.90x = 75,807,904.83
  5. Step 5: Solve for x
    x = 75,807,904.83/13,583.90
  6. Step 6: Final answer
    x = 5,580.72

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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.