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Finding the Fourth Proportional to 18,367.64, 27,547.10 and 6,520.44

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Solution

The fourth proportional to 18,367.64, 27,547.10 and 6,520.44 is: 9,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.64 : 27,547.10 = 6,520.44 : x
  2. Step 2: Convert to fraction form
    18,367.64/27,547.10 = 6,520.44/x
  3. Step 3: Cross multiply
    18,367.64x = 27,547.10 × 6,520.44
  4. Step 4: Simplify right side
    18,367.64x = 179,619,212.72
  5. Step 5: Solve for x
    x = 179,619,212.72/18,367.64
  6. Step 6: Final answer
    x = 9,779.11

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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.