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Finding the Fourth Proportional to 7,957.89, 11,914.29 and 6,612.89

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Solution

The fourth proportional to 7,957.89, 11,914.29 and 6,612.89 is: 9,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.89 : 11,914.29 = 6,612.89 : x
  2. Step 2: Convert to fraction form
    7,957.89/11,914.29 = 6,612.89/x
  3. Step 3: Cross multiply
    7,957.89x = 11,914.29 × 6,612.89
  4. Step 4: Simplify right side
    7,957.89x = 78,787,826.35
  5. Step 5: Solve for x
    x = 78,787,826.35/7,957.89
  6. Step 6: Final answer
    x = 9,900.59

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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.