Home / 8,327.91-12,487.73-2,779.35

Finding the Fourth Proportional to 8,327.91, 12,487.73 and 2,779.35

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Solution

The fourth proportional to 8,327.91, 12,487.73 and 2,779.35 is: 4,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.91 : 12,487.73 = 2,779.35 : x
  2. Step 2: Convert to fraction form
    8,327.91/12,487.73 = 2,779.35/x
  3. Step 3: Cross multiply
    8,327.91x = 12,487.73 × 2,779.35
  4. Step 4: Simplify right side
    8,327.91x = 34,707,758.48
  5. Step 5: Solve for x
    x = 34,707,758.48/8,327.91
  6. Step 6: Final answer
    x = 4,167.64

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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.