Home / 12,170.05-16,795.18-6,864.87

Finding the Fourth Proportional to 12,170.05, 16,795.18 and 6,864.87

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Solution

The fourth proportional to 12,170.05, 16,795.18 and 6,864.87 is: 9,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.05 : 16,795.18 = 6,864.87 : x
  2. Step 2: Convert to fraction form
    12,170.05/16,795.18 = 6,864.87/x
  3. Step 3: Cross multiply
    12,170.05x = 16,795.18 × 6,864.87
  4. Step 4: Simplify right side
    12,170.05x = 115,296,672.93
  5. Step 5: Solve for x
    x = 115,296,672.93/12,170.05
  6. Step 6: Final answer
    x = 9,473.80

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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.