Home / 8,157.87-12,214.85-4,254.03

Finding the Fourth Proportional to 8,157.87, 12,214.85 and 4,254.03

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Solution

The fourth proportional to 8,157.87, 12,214.85 and 4,254.03 is: 6,369.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.87 : 12,214.85 = 4,254.03 : x
  2. Step 2: Convert to fraction form
    8,157.87/12,214.85 = 4,254.03/x
  3. Step 3: Cross multiply
    8,157.87x = 12,214.85 × 4,254.03
  4. Step 4: Simplify right side
    8,157.87x = 51,962,317.08
  5. Step 5: Solve for x
    x = 51,962,317.08/8,157.87
  6. Step 6: Final answer
    x = 6,369.59

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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.