Home / 8,172.08-11,276.90-4,635.86

Finding the Fourth Proportional to 8,172.08, 11,276.90 and 4,635.86

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Solution

The fourth proportional to 8,172.08, 11,276.90 and 4,635.86 is: 6,397.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.08 : 11,276.90 = 4,635.86 : x
  2. Step 2: Convert to fraction form
    8,172.08/11,276.90 = 4,635.86/x
  3. Step 3: Cross multiply
    8,172.08x = 11,276.90 × 4,635.86
  4. Step 4: Simplify right side
    8,172.08x = 52,278,129.63
  5. Step 5: Solve for x
    x = 52,278,129.63/8,172.08
  6. Step 6: Final answer
    x = 6,397.16

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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.