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Finding the Fourth Proportional to 11,959.92, 16,505.71 and 6,655.77

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Solution

The fourth proportional to 11,959.92, 16,505.71 and 6,655.77 is: 9,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,959.92 : 16,505.71 = 6,655.77 : x
  2. Step 2: Convert to fraction form
    11,959.92/16,505.71 = 6,655.77/x
  3. Step 3: Cross multiply
    11,959.92x = 16,505.71 × 6,655.77
  4. Step 4: Simplify right side
    11,959.92x = 109,858,192.81
  5. Step 5: Solve for x
    x = 109,858,192.81/11,959.92
  6. Step 6: Final answer
    x = 9,185.53

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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.