Home / 13,331.68-19,998-6,739.36

Finding the Fourth Proportional to 13,331.68, 19,998 and 6,739.36

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Solution

The fourth proportional to 13,331.68, 19,998 and 6,739.36 is: 10,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.68 : 19,998 = 6,739.36 : x
  2. Step 2: Convert to fraction form
    13,331.68/19,998 = 6,739.36/x
  3. Step 3: Cross multiply
    13,331.68x = 19,998 × 6,739.36
  4. Step 4: Simplify right side
    13,331.68x = 134,773,721.28
  5. Step 5: Solve for x
    x = 134,773,721.28/13,331.68
  6. Step 6: Final answer
    x = 10,109.28

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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.