Home / 11,987.18-16,543.91-6,682.49

Finding the Fourth Proportional to 11,987.18, 16,543.91 and 6,682.49

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Solution

The fourth proportional to 11,987.18, 16,543.91 and 6,682.49 is: 9,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.18 : 16,543.91 = 6,682.49 : x
  2. Step 2: Convert to fraction form
    11,987.18/16,543.91 = 6,682.49/x
  3. Step 3: Cross multiply
    11,987.18x = 16,543.91 × 6,682.49
  4. Step 4: Simplify right side
    11,987.18x = 110,554,513.14
  5. Step 5: Solve for x
    x = 110,554,513.14/11,987.18
  6. Step 6: Final answer
    x = 9,222.73

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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.