Home / 12,998.12-19,495.11-3,637.13

Finding the Fourth Proportional to 12,998.12, 19,495.11 and 3,637.13

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Solution

The fourth proportional to 12,998.12, 19,495.11 and 3,637.13 is: 5,455.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.12 : 19,495.11 = 3,637.13 : x
  2. Step 2: Convert to fraction form
    12,998.12/19,495.11 = 3,637.13/x
  3. Step 3: Cross multiply
    12,998.12x = 19,495.11 × 3,637.13
  4. Step 4: Simplify right side
    12,998.12x = 70,906,249.43
  5. Step 5: Solve for x
    x = 70,906,249.43/12,998.12
  6. Step 6: Final answer
    x = 5,455.12

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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.