Home / 13,540.04-20,307.96-5,223.95

Finding the Fourth Proportional to 13,540.04, 20,307.96 and 5,223.95

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Solution

The fourth proportional to 13,540.04, 20,307.96 and 5,223.95 is: 7,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.04 : 20,307.96 = 5,223.95 : x
  2. Step 2: Convert to fraction form
    13,540.04/20,307.96 = 5,223.95/x
  3. Step 3: Cross multiply
    13,540.04x = 20,307.96 × 5,223.95
  4. Step 4: Simplify right side
    13,540.04x = 106,087,767.64
  5. Step 5: Solve for x
    x = 106,087,767.64/13,540.04
  6. Step 6: Final answer
    x = 7,835.11

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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.