Home / 8,479.16-12,702.34-4,770.12

Finding the Fourth Proportional to 8,479.16, 12,702.34 and 4,770.12

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Solution

The fourth proportional to 8,479.16, 12,702.34 and 4,770.12 is: 7,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.16 : 12,702.34 = 4,770.12 : x
  2. Step 2: Convert to fraction form
    8,479.16/12,702.34 = 4,770.12/x
  3. Step 3: Cross multiply
    8,479.16x = 12,702.34 × 4,770.12
  4. Step 4: Simplify right side
    8,479.16x = 60,591,686.08
  5. Step 5: Solve for x
    x = 60,591,686.08/8,479.16
  6. Step 6: Final answer
    x = 7,145.95

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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.