Home / 13,356.24-19,996.96-10,391.64

Finding the Fourth Proportional to 13,356.24, 19,996.96 and 10,391.64

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Solution

The fourth proportional to 13,356.24, 19,996.96 and 10,391.64 is: 15,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.24 : 19,996.96 = 10,391.64 : x
  2. Step 2: Convert to fraction form
    13,356.24/19,996.96 = 10,391.64/x
  3. Step 3: Cross multiply
    13,356.24x = 19,996.96 × 10,391.64
  4. Step 4: Simplify right side
    13,356.24x = 207,801,209.41
  5. Step 5: Solve for x
    x = 207,801,209.41/13,356.24
  6. Step 6: Final answer
    x = 15,558.36

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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.