Home / 11,781.19-16,253.53-8,722.32

Finding the Fourth Proportional to 11,781.19, 16,253.53 and 8,722.32

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Solution

The fourth proportional to 11,781.19, 16,253.53 and 8,722.32 is: 12,033.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.19 : 16,253.53 = 8,722.32 : x
  2. Step 2: Convert to fraction form
    11,781.19/16,253.53 = 8,722.32/x
  3. Step 3: Cross multiply
    11,781.19x = 16,253.53 × 8,722.32
  4. Step 4: Simplify right side
    11,781.19x = 141,768,561.64
  5. Step 5: Solve for x
    x = 141,768,561.64/11,781.19
  6. Step 6: Final answer
    x = 12,033.47

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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.