Home / 12,402.40-17,115.03-6,737.09

Finding the Fourth Proportional to 12,402.40, 17,115.03 and 6,737.09

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Solution

The fourth proportional to 12,402.40, 17,115.03 and 6,737.09 is: 9,297.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.40 : 17,115.03 = 6,737.09 : x
  2. Step 2: Convert to fraction form
    12,402.40/17,115.03 = 6,737.09/x
  3. Step 3: Cross multiply
    12,402.40x = 17,115.03 × 6,737.09
  4. Step 4: Simplify right side
    12,402.40x = 115,305,497.46
  5. Step 5: Solve for x
    x = 115,305,497.46/12,402.40
  6. Step 6: Final answer
    x = 9,297.03

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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.