Home / 8,779.48-13,168.92-2,205.72

Finding the Fourth Proportional to 8,779.48, 13,168.92 and 2,205.72

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Solution

The fourth proportional to 8,779.48, 13,168.92 and 2,205.72 is: 3,308.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.48 : 13,168.92 = 2,205.72 : x
  2. Step 2: Convert to fraction form
    8,779.48/13,168.92 = 2,205.72/x
  3. Step 3: Cross multiply
    8,779.48x = 13,168.92 × 2,205.72
  4. Step 4: Simplify right side
    8,779.48x = 29,046,950.22
  5. Step 5: Solve for x
    x = 29,046,950.22/8,779.48
  6. Step 6: Final answer
    x = 3,308.50

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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.