Home / 12,781.13-19,165.21-5,849.69

Finding the Fourth Proportional to 12,781.13, 19,165.21 and 5,849.69

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Solution

The fourth proportional to 12,781.13, 19,165.21 and 5,849.69 is: 8,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.13 : 19,165.21 = 5,849.69 : x
  2. Step 2: Convert to fraction form
    12,781.13/19,165.21 = 5,849.69/x
  3. Step 3: Cross multiply
    12,781.13x = 19,165.21 × 5,849.69
  4. Step 4: Simplify right side
    12,781.13x = 112,110,537.28
  5. Step 5: Solve for x
    x = 112,110,537.28/12,781.13
  6. Step 6: Final answer
    x = 8,771.57

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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.