Home / 11,781.42-16,272.75-8,810.46

Finding the Fourth Proportional to 11,781.42, 16,272.75 and 8,810.46

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Solution

The fourth proportional to 11,781.42, 16,272.75 and 8,810.46 is: 12,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.42 : 16,272.75 = 8,810.46 : x
  2. Step 2: Convert to fraction form
    11,781.42/16,272.75 = 8,810.46/x
  3. Step 3: Cross multiply
    11,781.42x = 16,272.75 × 8,810.46
  4. Step 4: Simplify right side
    11,781.42x = 143,370,412.97
  5. Step 5: Solve for x
    x = 143,370,412.97/11,781.42
  6. Step 6: Final answer
    x = 12,169.20

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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.