Home / 13,092.85-18,066.40-7,785.73

Finding the Fourth Proportional to 13,092.85, 18,066.40 and 7,785.73

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Solution

The fourth proportional to 13,092.85, 18,066.40 and 7,785.73 is: 10,743.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.85 : 18,066.40 = 7,785.73 : x
  2. Step 2: Convert to fraction form
    13,092.85/18,066.40 = 7,785.73/x
  3. Step 3: Cross multiply
    13,092.85x = 18,066.40 × 7,785.73
  4. Step 4: Simplify right side
    13,092.85x = 140,660,112.47
  5. Step 5: Solve for x
    x = 140,660,112.47/13,092.85
  6. Step 6: Final answer
    x = 10,743.28

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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.