Home / 12,664.05-17,476.28-6,998.78

Finding the Fourth Proportional to 12,664.05, 17,476.28 and 6,998.78

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Solution

The fourth proportional to 12,664.05, 17,476.28 and 6,998.78 is: 9,658.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.05 : 17,476.28 = 6,998.78 : x
  2. Step 2: Convert to fraction form
    12,664.05/17,476.28 = 6,998.78/x
  3. Step 3: Cross multiply
    12,664.05x = 17,476.28 × 6,998.78
  4. Step 4: Simplify right side
    12,664.05x = 122,312,516.56
  5. Step 5: Solve for x
    x = 122,312,516.56/12,664.05
  6. Step 6: Final answer
    x = 9,658.25

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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.