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Finding the Fourth Proportional to 7,801.39, 11,702.08 and 5,623.96

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Solution

The fourth proportional to 7,801.39, 11,702.08 and 5,623.96 is: 8,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.39 : 11,702.08 = 5,623.96 : x
  2. Step 2: Convert to fraction form
    7,801.39/11,702.08 = 5,623.96/x
  3. Step 3: Cross multiply
    7,801.39x = 11,702.08 × 5,623.96
  4. Step 4: Simplify right side
    7,801.39x = 65,812,029.84
  5. Step 5: Solve for x
    x = 65,812,029.84/7,801.39
  6. Step 6: Final answer
    x = 8,435.94

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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.