Home / 11,700.80-16,145.23-6,665.11

Finding the Fourth Proportional to 11,700.80, 16,145.23 and 6,665.11

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Solution

The fourth proportional to 11,700.80, 16,145.23 and 6,665.11 is: 9,196.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,700.80 : 16,145.23 = 6,665.11 : x
  2. Step 2: Convert to fraction form
    11,700.80/16,145.23 = 6,665.11/x
  3. Step 3: Cross multiply
    11,700.80x = 16,145.23 × 6,665.11
  4. Step 4: Simplify right side
    11,700.80x = 107,609,737.44
  5. Step 5: Solve for x
    x = 107,609,737.44/11,700.80
  6. Step 6: Final answer
    x = 9,196.79

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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.