Home / 18,851.64-28,284.84-5,705.36

Finding the Fourth Proportional to 18,851.64, 28,284.84 and 5,705.36

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Solution

The fourth proportional to 18,851.64, 28,284.84 and 5,705.36 is: 8,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.64 : 28,284.84 = 5,705.36 : x
  2. Step 2: Convert to fraction form
    18,851.64/28,284.84 = 5,705.36/x
  3. Step 3: Cross multiply
    18,851.64x = 28,284.84 × 5,705.36
  4. Step 4: Simplify right side
    18,851.64x = 161,375,194.74
  5. Step 5: Solve for x
    x = 161,375,194.74/18,851.64
  6. Step 6: Final answer
    x = 8,560.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.