Home / 12,397.94-17,109.56-6,808.94

Finding the Fourth Proportional to 12,397.94, 17,109.56 and 6,808.94

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Solution

The fourth proportional to 12,397.94, 17,109.56 and 6,808.94 is: 9,396.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.94 : 17,109.56 = 6,808.94 : x
  2. Step 2: Convert to fraction form
    12,397.94/17,109.56 = 6,808.94/x
  3. Step 3: Cross multiply
    12,397.94x = 17,109.56 × 6,808.94
  4. Step 4: Simplify right side
    12,397.94x = 116,497,967.47
  5. Step 5: Solve for x
    x = 116,497,967.47/12,397.94
  6. Step 6: Final answer
    x = 9,396.56

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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.