Home / 13,720.64-20,583.99-4,363.52

Finding the Fourth Proportional to 13,720.64, 20,583.99 and 4,363.52

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Solution

The fourth proportional to 13,720.64, 20,583.99 and 4,363.52 is: 6,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.64 : 20,583.99 = 4,363.52 : x
  2. Step 2: Convert to fraction form
    13,720.64/20,583.99 = 4,363.52/x
  3. Step 3: Cross multiply
    13,720.64x = 20,583.99 × 4,363.52
  4. Step 4: Simplify right side
    13,720.64x = 89,818,549.12
  5. Step 5: Solve for x
    x = 89,818,549.12/13,720.64
  6. Step 6: Final answer
    x = 6,546.24

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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.