Home / 18,926.54-28,393.23-7,827.20

Finding the Fourth Proportional to 18,926.54, 28,393.23 and 7,827.20

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Solution

The fourth proportional to 18,926.54, 28,393.23 and 7,827.20 is: 11,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.54 : 28,393.23 = 7,827.20 : x
  2. Step 2: Convert to fraction form
    18,926.54/28,393.23 = 7,827.20/x
  3. Step 3: Cross multiply
    18,926.54x = 28,393.23 × 7,827.20
  4. Step 4: Simplify right side
    18,926.54x = 222,239,489.86
  5. Step 5: Solve for x
    x = 222,239,489.86/18,926.54
  6. Step 6: Final answer
    x = 11,742.21

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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.