Home / 13,131.62-19,699.99-4,249.15

Finding the Fourth Proportional to 13,131.62, 19,699.99 and 4,249.15

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Solution

The fourth proportional to 13,131.62, 19,699.99 and 4,249.15 is: 6,374.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.62 : 19,699.99 = 4,249.15 : x
  2. Step 2: Convert to fraction form
    13,131.62/19,699.99 = 4,249.15/x
  3. Step 3: Cross multiply
    13,131.62x = 19,699.99 × 4,249.15
  4. Step 4: Simplify right side
    13,131.62x = 83,708,212.51
  5. Step 5: Solve for x
    x = 83,708,212.51/13,131.62
  6. Step 6: Final answer
    x = 6,374.55

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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.