Home / 13,161.92-19,742.88-6,581.48

Finding the Fourth Proportional to 13,161.92, 19,742.88 and 6,581.48

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Solution

The fourth proportional to 13,161.92, 19,742.88 and 6,581.48 is: 9,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.92 : 19,742.88 = 6,581.48 : x
  2. Step 2: Convert to fraction form
    13,161.92/19,742.88 = 6,581.48/x
  3. Step 3: Cross multiply
    13,161.92x = 19,742.88 × 6,581.48
  4. Step 4: Simplify right side
    13,161.92x = 129,937,369.86
  5. Step 5: Solve for x
    x = 129,937,369.86/13,161.92
  6. Step 6: Final answer
    x = 9,872.22

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.