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Finding the Fourth Proportional to 18,842.63, 28,244.12 and 6,358.28

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Solution

The fourth proportional to 18,842.63, 28,244.12 and 6,358.28 is: 9,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,842.63 : 28,244.12 = 6,358.28 : x
  2. Step 2: Convert to fraction form
    18,842.63/28,244.12 = 6,358.28/x
  3. Step 3: Cross multiply
    18,842.63x = 28,244.12 × 6,358.28
  4. Step 4: Simplify right side
    18,842.63x = 179,583,850.30
  5. Step 5: Solve for x
    x = 179,583,850.30/18,842.63
  6. Step 6: Final answer
    x = 9,530.72

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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.