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Finding the Fourth Proportional to 8,779.82, 13,180.02 and 6,932.18

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Solution

The fourth proportional to 8,779.82, 13,180.02 and 6,932.18 is: 10,406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.82 : 13,180.02 = 6,932.18 : x
  2. Step 2: Convert to fraction form
    8,779.82/13,180.02 = 6,932.18/x
  3. Step 3: Cross multiply
    8,779.82x = 13,180.02 × 6,932.18
  4. Step 4: Simplify right side
    8,779.82x = 91,366,271.04
  5. Step 5: Solve for x
    x = 91,366,271.04/8,779.82
  6. Step 6: Final answer
    x = 10,406.39

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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.