Home / 12,741.80-19,112.68-8,358.23

Finding the Fourth Proportional to 12,741.80, 19,112.68 and 8,358.23

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Solution

The fourth proportional to 12,741.80, 19,112.68 and 8,358.23 is: 12,537.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.80 : 19,112.68 = 8,358.23 : x
  2. Step 2: Convert to fraction form
    12,741.80/19,112.68 = 8,358.23/x
  3. Step 3: Cross multiply
    12,741.80x = 19,112.68 × 8,358.23
  4. Step 4: Simplify right side
    12,741.80x = 159,748,175.36
  5. Step 5: Solve for x
    x = 159,748,175.36/12,741.80
  6. Step 6: Final answer
    x = 12,537.33

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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.