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Finding the Fourth Proportional to 9,188.74, 13,779.01 and 4,259.79

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Solution

The fourth proportional to 9,188.74, 13,779.01 and 4,259.79 is: 6,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.74 : 13,779.01 = 4,259.79 : x
  2. Step 2: Convert to fraction form
    9,188.74/13,779.01 = 4,259.79/x
  3. Step 3: Cross multiply
    9,188.74x = 13,779.01 × 4,259.79
  4. Step 4: Simplify right side
    9,188.74x = 58,695,694.33
  5. Step 5: Solve for x
    x = 58,695,694.33/9,188.74
  6. Step 6: Final answer
    x = 6,387.78

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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.