Home / 13,560.69-20,337.75-5,235.39

Finding the Fourth Proportional to 13,560.69, 20,337.75 and 5,235.39

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Solution

The fourth proportional to 13,560.69, 20,337.75 and 5,235.39 is: 7,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.69 : 20,337.75 = 5,235.39 : x
  2. Step 2: Convert to fraction form
    13,560.69/20,337.75 = 5,235.39/x
  3. Step 3: Cross multiply
    13,560.69x = 20,337.75 × 5,235.39
  4. Step 4: Simplify right side
    13,560.69x = 106,476,052.97
  5. Step 5: Solve for x
    x = 106,476,052.97/13,560.69
  6. Step 6: Final answer
    x = 7,851.82

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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.