Home / 13,326.22-18,390.35-7,357.76

Finding the Fourth Proportional to 13,326.22, 18,390.35 and 7,357.76

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Solution

The fourth proportional to 13,326.22, 18,390.35 and 7,357.76 is: 10,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.22 : 18,390.35 = 7,357.76 : x
  2. Step 2: Convert to fraction form
    13,326.22/18,390.35 = 7,357.76/x
  3. Step 3: Cross multiply
    13,326.22x = 18,390.35 × 7,357.76
  4. Step 4: Simplify right side
    13,326.22x = 135,311,839.09
  5. Step 5: Solve for x
    x = 135,311,839.09/13,326.22
  6. Step 6: Final answer
    x = 10,153.80

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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.