Home / 12,397.68-17,108.64-6,808.56

Finding the Fourth Proportional to 12,397.68, 17,108.64 and 6,808.56

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Solution

The fourth proportional to 12,397.68, 17,108.64 and 6,808.56 is: 9,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.68 : 17,108.64 = 6,808.56 : x
  2. Step 2: Convert to fraction form
    12,397.68/17,108.64 = 6,808.56/x
  3. Step 3: Cross multiply
    12,397.68x = 17,108.64 × 6,808.56
  4. Step 4: Simplify right side
    12,397.68x = 116,485,201.96
  5. Step 5: Solve for x
    x = 116,485,201.96/12,397.68
  6. Step 6: Final answer
    x = 9,395.73

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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.