Home / 13,198.94-18,216.05-7,534.49

Finding the Fourth Proportional to 13,198.94, 18,216.05 and 7,534.49

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Solution

The fourth proportional to 13,198.94, 18,216.05 and 7,534.49 is: 10,398.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.94 : 18,216.05 = 7,534.49 : x
  2. Step 2: Convert to fraction form
    13,198.94/18,216.05 = 7,534.49/x
  3. Step 3: Cross multiply
    13,198.94x = 18,216.05 × 7,534.49
  4. Step 4: Simplify right side
    13,198.94x = 137,248,646.56
  5. Step 5: Solve for x
    x = 137,248,646.56/13,198.94
  6. Step 6: Final answer
    x = 10,398.46

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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.