Home / 11,779.20-16,269.72-8,808.25

Finding the Fourth Proportional to 11,779.20, 16,269.72 and 8,808.25

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Solution

The fourth proportional to 11,779.20, 16,269.72 and 8,808.25 is: 12,166.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.20 : 16,269.72 = 8,808.25 : x
  2. Step 2: Convert to fraction form
    11,779.20/16,269.72 = 8,808.25/x
  3. Step 3: Cross multiply
    11,779.20x = 16,269.72 × 8,808.25
  4. Step 4: Simplify right side
    11,779.20x = 143,307,761.19
  5. Step 5: Solve for x
    x = 143,307,761.19/11,779.20
  6. Step 6: Final answer
    x = 12,166.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.