Home / 12,723.42-19,083.91-7,790.52

Finding the Fourth Proportional to 12,723.42, 19,083.91 and 7,790.52

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Solution

The fourth proportional to 12,723.42, 19,083.91 and 7,790.52 is: 11,685.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.42 : 19,083.91 = 7,790.52 : x
  2. Step 2: Convert to fraction form
    12,723.42/19,083.91 = 7,790.52/x
  3. Step 3: Cross multiply
    12,723.42x = 19,083.91 × 7,790.52
  4. Step 4: Simplify right side
    12,723.42x = 148,673,582.53
  5. Step 5: Solve for x
    x = 148,673,582.53/12,723.42
  6. Step 6: Final answer
    x = 11,685.03

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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.