Home / 12,598.39-18,899.75-5,198.82

Finding the Fourth Proportional to 12,598.39, 18,899.75 and 5,198.82

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Solution

The fourth proportional to 12,598.39, 18,899.75 and 5,198.82 is: 7,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598.39 : 18,899.75 = 5,198.82 : x
  2. Step 2: Convert to fraction form
    12,598.39/18,899.75 = 5,198.82/x
  3. Step 3: Cross multiply
    12,598.39x = 18,899.75 × 5,198.82
  4. Step 4: Simplify right side
    12,598.39x = 98,256,398.30
  5. Step 5: Solve for x
    x = 98,256,398.30/12,598.39
  6. Step 6: Final answer
    x = 7,799.12

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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.