Home / 11,986.76-16,541.82-6,681.92

Finding the Fourth Proportional to 11,986.76, 16,541.82 and 6,681.92

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Solution

The fourth proportional to 11,986.76, 16,541.82 and 6,681.92 is: 9,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.76 : 16,541.82 = 6,681.92 : x
  2. Step 2: Convert to fraction form
    11,986.76/16,541.82 = 6,681.92/x
  3. Step 3: Cross multiply
    11,986.76x = 16,541.82 × 6,681.92
  4. Step 4: Simplify right side
    11,986.76x = 110,531,035.19
  5. Step 5: Solve for x
    x = 110,531,035.19/11,986.76
  6. Step 6: Final answer
    x = 9,221.10

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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.