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Finding the Fourth Proportional to 18,633.75, 27,941.79 and 6,779.16

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Solution

The fourth proportional to 18,633.75, 27,941.79 and 6,779.16 is: 10,165.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.75 : 27,941.79 = 6,779.16 : x
  2. Step 2: Convert to fraction form
    18,633.75/27,941.79 = 6,779.16/x
  3. Step 3: Cross multiply
    18,633.75x = 27,941.79 × 6,779.16
  4. Step 4: Simplify right side
    18,633.75x = 189,421,890.52
  5. Step 5: Solve for x
    x = 189,421,890.52/18,633.75
  6. Step 6: Final answer
    x = 10,165.53

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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.