Home / 13,198.32-18,213.66-7,230.10

Finding the Fourth Proportional to 13,198.32, 18,213.66 and 7,230.10

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Solution

The fourth proportional to 13,198.32, 18,213.66 and 7,230.10 is: 9,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.32 : 18,213.66 = 7,230.10 : x
  2. Step 2: Convert to fraction form
    13,198.32/18,213.66 = 7,230.10/x
  3. Step 3: Cross multiply
    13,198.32x = 18,213.66 × 7,230.10
  4. Step 4: Simplify right side
    13,198.32x = 131,686,583.17
  5. Step 5: Solve for x
    x = 131,686,583.17/13,198.32
  6. Step 6: Final answer
    x = 9,977.53

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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.