Home / 13,823.97-20,735.80-6,424.31

Finding the Fourth Proportional to 13,823.97, 20,735.80 and 6,424.31

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Solution

The fourth proportional to 13,823.97, 20,735.80 and 6,424.31 is: 9,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.97 : 20,735.80 = 6,424.31 : x
  2. Step 2: Convert to fraction form
    13,823.97/20,735.80 = 6,424.31/x
  3. Step 3: Cross multiply
    13,823.97x = 20,735.80 × 6,424.31
  4. Step 4: Simplify right side
    13,823.97x = 133,213,243.08
  5. Step 5: Solve for x
    x = 133,213,243.08/13,823.97
  6. Step 6: Final answer
    x = 9,636.40

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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.