Home / 8,520.10-12,779.84-4,136.38

Finding the Fourth Proportional to 8,520.10, 12,779.84 and 4,136.38

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Solution

The fourth proportional to 8,520.10, 12,779.84 and 4,136.38 is: 6,204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.10 : 12,779.84 = 4,136.38 : x
  2. Step 2: Convert to fraction form
    8,520.10/12,779.84 = 4,136.38/x
  3. Step 3: Cross multiply
    8,520.10x = 12,779.84 × 4,136.38
  4. Step 4: Simplify right side
    8,520.10x = 52,862,274.58
  5. Step 5: Solve for x
    x = 52,862,274.58/8,520.10
  6. Step 6: Final answer
    x = 6,204.42

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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.