Home / 13,863.48-19,132.38-9,144.42

Finding the Fourth Proportional to 13,863.48, 19,132.38 and 9,144.42

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Solution

The fourth proportional to 13,863.48, 19,132.38 and 9,144.42 is: 12,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.48 : 19,132.38 = 9,144.42 : x
  2. Step 2: Convert to fraction form
    13,863.48/19,132.38 = 9,144.42/x
  3. Step 3: Cross multiply
    13,863.48x = 19,132.38 × 9,144.42
  4. Step 4: Simplify right side
    13,863.48x = 174,954,518.32
  5. Step 5: Solve for x
    x = 174,954,518.32/13,863.48
  6. Step 6: Final answer
    x = 12,619.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.