Home / 12,799.51-19,190.05-8,629.22

Finding the Fourth Proportional to 12,799.51, 19,190.05 and 8,629.22

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Solution

The fourth proportional to 12,799.51, 19,190.05 and 8,629.22 is: 12,937.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.51 : 19,190.05 = 8,629.22 : x
  2. Step 2: Convert to fraction form
    12,799.51/19,190.05 = 8,629.22/x
  3. Step 3: Cross multiply
    12,799.51x = 19,190.05 × 8,629.22
  4. Step 4: Simplify right side
    12,799.51x = 165,595,189.66
  5. Step 5: Solve for x
    x = 165,595,189.66/12,799.51
  6. Step 6: Final answer
    x = 12,937.62

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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.