Home / 11,988.96-16,543.20-6,683.04

Finding the Fourth Proportional to 11,988.96, 16,543.20 and 6,683.04

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Solution

The fourth proportional to 11,988.96, 16,543.20 and 6,683.04 is: 9,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.96 : 16,543.20 = 6,683.04 : x
  2. Step 2: Convert to fraction form
    11,988.96/16,543.20 = 6,683.04/x
  3. Step 3: Cross multiply
    11,988.96x = 16,543.20 × 6,683.04
  4. Step 4: Simplify right side
    11,988.96x = 110,558,867.33
  5. Step 5: Solve for x
    x = 110,558,867.33/11,988.96
  6. Step 6: Final answer
    x = 9,221.72

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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.