Home / 18,914.02-28,375.29-5,767.72

Finding the Fourth Proportional to 18,914.02, 28,375.29 and 5,767.72

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Solution

The fourth proportional to 18,914.02, 28,375.29 and 5,767.72 is: 8,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914.02 : 28,375.29 = 5,767.72 : x
  2. Step 2: Convert to fraction form
    18,914.02/28,375.29 = 5,767.72/x
  3. Step 3: Cross multiply
    18,914.02x = 28,375.29 × 5,767.72
  4. Step 4: Simplify right side
    18,914.02x = 163,660,727.64
  5. Step 5: Solve for x
    x = 163,660,727.64/18,914.02
  6. Step 6: Final answer
    x = 8,652.88

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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.