Home / 12,132.22-16,742.38-6,827.06

Finding the Fourth Proportional to 12,132.22, 16,742.38 and 6,827.06

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Solution

The fourth proportional to 12,132.22, 16,742.38 and 6,827.06 is: 9,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.22 : 16,742.38 = 6,827.06 : x
  2. Step 2: Convert to fraction form
    12,132.22/16,742.38 = 6,827.06/x
  3. Step 3: Cross multiply
    12,132.22x = 16,742.38 × 6,827.06
  4. Step 4: Simplify right side
    12,132.22x = 114,301,232.80
  5. Step 5: Solve for x
    x = 114,301,232.80/12,132.22
  6. Step 6: Final answer
    x = 9,421.30

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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.