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Finding the Fourth Proportional to 7,993.62, 11,988.84 and 4,702.86

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Solution

The fourth proportional to 7,993.62, 11,988.84 and 4,702.86 is: 7,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.62 : 11,988.84 = 4,702.86 : x
  2. Step 2: Convert to fraction form
    7,993.62/11,988.84 = 4,702.86/x
  3. Step 3: Cross multiply
    7,993.62x = 11,988.84 × 4,702.86
  4. Step 4: Simplify right side
    7,993.62x = 56,381,836.08
  5. Step 5: Solve for x
    x = 56,381,836.08/7,993.62
  6. Step 6: Final answer
    x = 7,053.35

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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.