Home / 13,252.20-18,268.38-9,709.80

Finding the Fourth Proportional to 13,252.20, 18,268.38 and 9,709.80

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Solution

The fourth proportional to 13,252.20, 18,268.38 and 9,709.80 is: 13,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.20 : 18,268.38 = 9,709.80 : x
  2. Step 2: Convert to fraction form
    13,252.20/18,268.38 = 9,709.80/x
  3. Step 3: Cross multiply
    13,252.20x = 18,268.38 × 9,709.80
  4. Step 4: Simplify right side
    13,252.20x = 177,382,316.12
  5. Step 5: Solve for x
    x = 177,382,316.12/13,252.20
  6. Step 6: Final answer
    x = 13,385.12

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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.