Home / 17,335.80-25,979.40-12,135.60

Finding the Fourth Proportional to 17,335.80, 25,979.40 and 12,135.60

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Solution

The fourth proportional to 17,335.80, 25,979.40 and 12,135.60 is: 18,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,335.80 : 25,979.40 = 12,135.60 : x
  2. Step 2: Convert to fraction form
    17,335.80/25,979.40 = 12,135.60/x
  3. Step 3: Cross multiply
    17,335.80x = 25,979.40 × 12,135.60
  4. Step 4: Simplify right side
    17,335.80x = 315,275,606.64
  5. Step 5: Solve for x
    x = 315,275,606.64/17,335.80
  6. Step 6: Final answer
    x = 18,186.39

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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.