Home / 13,513.11-20,238.89-9,334.13

Finding the Fourth Proportional to 13,513.11, 20,238.89 and 9,334.13

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Solution

The fourth proportional to 13,513.11, 20,238.89 and 9,334.13 is: 13,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.11 : 20,238.89 = 9,334.13 : x
  2. Step 2: Convert to fraction form
    13,513.11/20,238.89 = 9,334.13/x
  3. Step 3: Cross multiply
    13,513.11x = 20,238.89 × 9,334.13
  4. Step 4: Simplify right side
    13,513.11x = 188,912,282.45
  5. Step 5: Solve for x
    x = 188,912,282.45/13,513.11
  6. Step 6: Final answer
    x = 13,979.93

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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.