Home / 12,001.11-16,561.34-6,696.51

Finding the Fourth Proportional to 12,001.11, 16,561.34 and 6,696.51

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Solution

The fourth proportional to 12,001.11, 16,561.34 and 6,696.51 is: 9,241.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.11 : 16,561.34 = 6,696.51 : x
  2. Step 2: Convert to fraction form
    12,001.11/16,561.34 = 6,696.51/x
  3. Step 3: Cross multiply
    12,001.11x = 16,561.34 × 6,696.51
  4. Step 4: Simplify right side
    12,001.11x = 110,903,145.44
  5. Step 5: Solve for x
    x = 110,903,145.44/12,001.11
  6. Step 6: Final answer
    x = 9,241.07

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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.