Home / 8,779.12-13,167.70-2,205.33

Finding the Fourth Proportional to 8,779.12, 13,167.70 and 2,205.33

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Solution

The fourth proportional to 8,779.12, 13,167.70 and 2,205.33 is: 3,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.12 : 13,167.70 = 2,205.33 : x
  2. Step 2: Convert to fraction form
    8,779.12/13,167.70 = 2,205.33/x
  3. Step 3: Cross multiply
    8,779.12x = 13,167.70 × 2,205.33
  4. Step 4: Simplify right side
    8,779.12x = 29,039,068.95
  5. Step 5: Solve for x
    x = 29,039,068.95/8,779.12
  6. Step 6: Final answer
    x = 3,307.74

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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.