Home / 8,818.90-12,170.38-4,840.18

Finding the Fourth Proportional to 8,818.90, 12,170.38 and 4,840.18

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Solution

The fourth proportional to 8,818.90, 12,170.38 and 4,840.18 is: 6,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.90 : 12,170.38 = 4,840.18 : x
  2. Step 2: Convert to fraction form
    8,818.90/12,170.38 = 4,840.18/x
  3. Step 3: Cross multiply
    8,818.90x = 12,170.38 × 4,840.18
  4. Step 4: Simplify right side
    8,818.90x = 58,906,829.87
  5. Step 5: Solve for x
    x = 58,906,829.87/8,818.90
  6. Step 6: Final answer
    x = 6,679.61

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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.