Home / 8,779.43-12,115.49-5,002.80

Finding the Fourth Proportional to 8,779.43, 12,115.49 and 5,002.80

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Solution

The fourth proportional to 8,779.43, 12,115.49 and 5,002.80 is: 6,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.43 : 12,115.49 = 5,002.80 : x
  2. Step 2: Convert to fraction form
    8,779.43/12,115.49 = 5,002.80/x
  3. Step 3: Cross multiply
    8,779.43x = 12,115.49 × 5,002.80
  4. Step 4: Simplify right side
    8,779.43x = 60,611,348.36
  5. Step 5: Solve for x
    x = 60,611,348.36/8,779.43
  6. Step 6: Final answer
    x = 6,903.79

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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.