Home / 8,779.20-13,168.81-3,585.07

Finding the Fourth Proportional to 8,779.20, 13,168.81 and 3,585.07

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Solution

The fourth proportional to 8,779.20, 13,168.81 and 3,585.07 is: 5,377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.20 : 13,168.81 = 3,585.07 : x
  2. Step 2: Convert to fraction form
    8,779.20/13,168.81 = 3,585.07/x
  3. Step 3: Cross multiply
    8,779.20x = 13,168.81 × 3,585.07
  4. Step 4: Simplify right side
    8,779.20x = 47,211,106.44
  5. Step 5: Solve for x
    x = 47,211,106.44/8,779.20
  6. Step 6: Final answer
    x = 5,377.61

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Similar ratio
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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.