Home / 8,531.08-12,779.58-5,250.56

Finding the Fourth Proportional to 8,531.08, 12,779.58 and 5,250.56

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Solution

The fourth proportional to 8,531.08, 12,779.58 and 5,250.56 is: 7,865.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.08 : 12,779.58 = 5,250.56 : x
  2. Step 2: Convert to fraction form
    8,531.08/12,779.58 = 5,250.56/x
  3. Step 3: Cross multiply
    8,531.08x = 12,779.58 × 5,250.56
  4. Step 4: Simplify right side
    8,531.08x = 67,099,951.56
  5. Step 5: Solve for x
    x = 67,099,951.56/8,531.08
  6. Step 6: Final answer
    x = 7,865.35

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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.