Home / 18,326.40-25,290.36-9,942.84

Finding the Fourth Proportional to 18,326.40, 25,290.36 and 9,942.84

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Solution

The fourth proportional to 18,326.40, 25,290.36 and 9,942.84 is: 13,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.40 : 25,290.36 = 9,942.84 : x
  2. Step 2: Convert to fraction form
    18,326.40/25,290.36 = 9,942.84/x
  3. Step 3: Cross multiply
    18,326.40x = 25,290.36 × 9,942.84
  4. Step 4: Simplify right side
    18,326.40x = 251,458,003.02
  5. Step 5: Solve for x
    x = 251,458,003.02/18,326.40
  6. Step 6: Final answer
    x = 13,721.08

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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.