Home / 11,988.50-16,543.94-6,683.64

Finding the Fourth Proportional to 11,988.50, 16,543.94 and 6,683.64

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Solution

The fourth proportional to 11,988.50, 16,543.94 and 6,683.64 is: 9,223.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.50 : 16,543.94 = 6,683.64 : x
  2. Step 2: Convert to fraction form
    11,988.50/16,543.94 = 6,683.64/x
  3. Step 3: Cross multiply
    11,988.50x = 16,543.94 × 6,683.64
  4. Step 4: Simplify right side
    11,988.50x = 110,573,739.14
  5. Step 5: Solve for x
    x = 110,573,739.14/11,988.50
  6. Step 6: Final answer
    x = 9,223.32

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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.