Home / 8,069.15-12,103.65-4,779.87

Finding the Fourth Proportional to 8,069.15, 12,103.65 and 4,779.87

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Solution

The fourth proportional to 8,069.15, 12,103.65 and 4,779.87 is: 7,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.15 : 12,103.65 = 4,779.87 : x
  2. Step 2: Convert to fraction form
    8,069.15/12,103.65 = 4,779.87/x
  3. Step 3: Cross multiply
    8,069.15x = 12,103.65 × 4,779.87
  4. Step 4: Simplify right side
    8,069.15x = 57,853,873.53
  5. Step 5: Solve for x
    x = 57,853,873.53/8,069.15
  6. Step 6: Final answer
    x = 7,169.77

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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.