Home / 8,372.12-11,538.29-8,132.22

Finding the Fourth Proportional to 8,372.12, 11,538.29 and 8,132.22

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Solution

The fourth proportional to 8,372.12, 11,538.29 and 8,132.22 is: 11,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.12 : 11,538.29 = 8,132.22 : x
  2. Step 2: Convert to fraction form
    8,372.12/11,538.29 = 8,132.22/x
  3. Step 3: Cross multiply
    8,372.12x = 11,538.29 × 8,132.22
  4. Step 4: Simplify right side
    8,372.12x = 93,831,872.04
  5. Step 5: Solve for x
    x = 93,831,872.04/8,372.12
  6. Step 6: Final answer
    x = 11,207.67

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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.