Home / 18,343.80-25,314.72-9,960.36

Finding the Fourth Proportional to 18,343.80, 25,314.72 and 9,960.36

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Solution

The fourth proportional to 18,343.80, 25,314.72 and 9,960.36 is: 13,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.80 : 25,314.72 = 9,960.36 : x
  2. Step 2: Convert to fraction form
    18,343.80/25,314.72 = 9,960.36/x
  3. Step 3: Cross multiply
    18,343.80x = 25,314.72 × 9,960.36
  4. Step 4: Simplify right side
    18,343.80x = 252,143,724.50
  5. Step 5: Solve for x
    x = 252,143,724.50/18,343.80
  6. Step 6: Final answer
    x = 13,745.45

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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.