Home / 12,790.23-17,650.82-7,125.36

Finding the Fourth Proportional to 12,790.23, 17,650.82 and 7,125.36

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Solution

The fourth proportional to 12,790.23, 17,650.82 and 7,125.36 is: 9,833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.23 : 17,650.82 = 7,125.36 : x
  2. Step 2: Convert to fraction form
    12,790.23/17,650.82 = 7,125.36/x
  3. Step 3: Cross multiply
    12,790.23x = 17,650.82 × 7,125.36
  4. Step 4: Simplify right side
    12,790.23x = 125,768,446.80
  5. Step 5: Solve for x
    x = 125,768,446.80/12,790.23
  6. Step 6: Final answer
    x = 9,833.17

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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.