Home / 13,343.43-18,422.52-8,565.44

Finding the Fourth Proportional to 13,343.43, 18,422.52 and 8,565.44

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Solution

The fourth proportional to 13,343.43, 18,422.52 and 8,565.44 is: 11,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.43 : 18,422.52 = 8,565.44 : x
  2. Step 2: Convert to fraction form
    13,343.43/18,422.52 = 8,565.44/x
  3. Step 3: Cross multiply
    13,343.43x = 18,422.52 × 8,565.44
  4. Step 4: Simplify right side
    13,343.43x = 157,796,897.60
  5. Step 5: Solve for x
    x = 157,796,897.60/13,343.43
  6. Step 6: Final answer
    x = 11,825.81

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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.