Home / 11,988.12-16,543.63-6,682.82

Finding the Fourth Proportional to 11,988.12, 16,543.63 and 6,682.82

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Solution

The fourth proportional to 11,988.12, 16,543.63 and 6,682.82 is: 9,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.12 : 16,543.63 = 6,682.82 : x
  2. Step 2: Convert to fraction form
    11,988.12/16,543.63 = 6,682.82/x
  3. Step 3: Cross multiply
    11,988.12x = 16,543.63 × 6,682.82
  4. Step 4: Simplify right side
    11,988.12x = 110,558,126.09
  5. Step 5: Solve for x
    x = 110,558,126.09/11,988.12
  6. Step 6: Final answer
    x = 9,222.31

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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.