Home / 11,965.95-16,513.55-6,661.11

Finding the Fourth Proportional to 11,965.95, 16,513.55 and 6,661.11

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Solution

The fourth proportional to 11,965.95, 16,513.55 and 6,661.11 is: 9,192.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.95 : 16,513.55 = 6,661.11 : x
  2. Step 2: Convert to fraction form
    11,965.95/16,513.55 = 6,661.11/x
  3. Step 3: Cross multiply
    11,965.95x = 16,513.55 × 6,661.11
  4. Step 4: Simplify right side
    11,965.95x = 109,998,573.04
  5. Step 5: Solve for x
    x = 109,998,573.04/11,965.95
  6. Step 6: Final answer
    x = 9,192.63

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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.