Home / 12,440.66-17,167.59-6,775.43

Finding the Fourth Proportional to 12,440.66, 17,167.59 and 6,775.43

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Solution

The fourth proportional to 12,440.66, 17,167.59 and 6,775.43 is: 9,349.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.66 : 17,167.59 = 6,775.43 : x
  2. Step 2: Convert to fraction form
    12,440.66/17,167.59 = 6,775.43/x
  3. Step 3: Cross multiply
    12,440.66x = 17,167.59 × 6,775.43
  4. Step 4: Simplify right side
    12,440.66x = 116,317,718.48
  5. Step 5: Solve for x
    x = 116,317,718.48/12,440.66
  6. Step 6: Final answer
    x = 9,349.81

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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.