Home / 13,933.62-20,905.56-6,540.48

Finding the Fourth Proportional to 13,933.62, 20,905.56 and 6,540.48

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Solution

The fourth proportional to 13,933.62, 20,905.56 and 6,540.48 is: 9,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.62 : 20,905.56 = 6,540.48 : x
  2. Step 2: Convert to fraction form
    13,933.62/20,905.56 = 6,540.48/x
  3. Step 3: Cross multiply
    13,933.62x = 20,905.56 × 6,540.48
  4. Step 4: Simplify right side
    13,933.62x = 136,732,397.07
  5. Step 5: Solve for x
    x = 136,732,397.07/13,933.62
  6. Step 6: Final answer
    x = 9,813.13

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1.5x scale

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.