Home / 11,814.19-16,305.93-6,781.79

Finding the Fourth Proportional to 11,814.19, 16,305.93 and 6,781.79

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Solution

The fourth proportional to 11,814.19, 16,305.93 and 6,781.79 is: 9,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.19 : 16,305.93 = 6,781.79 : x
  2. Step 2: Convert to fraction form
    11,814.19/16,305.93 = 6,781.79/x
  3. Step 3: Cross multiply
    11,814.19x = 16,305.93 × 6,781.79
  4. Step 4: Simplify right side
    11,814.19x = 110,583,433.78
  5. Step 5: Solve for x
    x = 110,583,433.78/11,814.19
  6. Step 6: Final answer
    x = 9,360.22

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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.