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Finding the Fourth Proportional to 8,874.86, 13,312.21 and 2,634.35

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Solution

The fourth proportional to 8,874.86, 13,312.21 and 2,634.35 is: 3,951.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.86 : 13,312.21 = 2,634.35 : x
  2. Step 2: Convert to fraction form
    8,874.86/13,312.21 = 2,634.35/x
  3. Step 3: Cross multiply
    8,874.86x = 13,312.21 × 2,634.35
  4. Step 4: Simplify right side
    8,874.86x = 35,068,980.55
  5. Step 5: Solve for x
    x = 35,068,980.55/8,874.86
  6. Step 6: Final answer
    x = 3,951.50

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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.