Home / 7,961.89-10,984.12-4,818.55

Finding the Fourth Proportional to 7,961.89, 10,984.12 and 4,818.55

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Solution

The fourth proportional to 7,961.89, 10,984.12 and 4,818.55 is: 6,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.89 : 10,984.12 = 4,818.55 : x
  2. Step 2: Convert to fraction form
    7,961.89/10,984.12 = 4,818.55/x
  3. Step 3: Cross multiply
    7,961.89x = 10,984.12 × 4,818.55
  4. Step 4: Simplify right side
    7,961.89x = 52,927,531.43
  5. Step 5: Solve for x
    x = 52,927,531.43/7,961.89
  6. Step 6: Final answer
    x = 6,647.61

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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.