Home / 12,892.22-17,789.66-7,854.60

Finding the Fourth Proportional to 12,892.22, 17,789.66 and 7,854.60

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Solution

The fourth proportional to 12,892.22, 17,789.66 and 7,854.60 is: 10,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.22 : 17,789.66 = 7,854.60 : x
  2. Step 2: Convert to fraction form
    12,892.22/17,789.66 = 7,854.60/x
  3. Step 3: Cross multiply
    12,892.22x = 17,789.66 × 7,854.60
  4. Step 4: Simplify right side
    12,892.22x = 139,730,663.44
  5. Step 5: Solve for x
    x = 139,730,663.44/12,892.22
  6. Step 6: Final answer
    x = 10,838.38

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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.