Home / 12,702.21-19,056.15-3,937.20

Finding the Fourth Proportional to 12,702.21, 19,056.15 and 3,937.20

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Solution

The fourth proportional to 12,702.21, 19,056.15 and 3,937.20 is: 5,906.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702.21 : 19,056.15 = 3,937.20 : x
  2. Step 2: Convert to fraction form
    12,702.21/19,056.15 = 3,937.20/x
  3. Step 3: Cross multiply
    12,702.21x = 19,056.15 × 3,937.20
  4. Step 4: Simplify right side
    12,702.21x = 75,027,873.78
  5. Step 5: Solve for x
    x = 75,027,873.78/12,702.21
  6. Step 6: Final answer
    x = 5,906.68

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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.