Home / 13,512.30-20,257.65-5,714.70

Finding the Fourth Proportional to 13,512.30, 20,257.65 and 5,714.70

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Solution

The fourth proportional to 13,512.30, 20,257.65 and 5,714.70 is: 8,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.30 : 20,257.65 = 5,714.70 : x
  2. Step 2: Convert to fraction form
    13,512.30/20,257.65 = 5,714.70/x
  3. Step 3: Cross multiply
    13,512.30x = 20,257.65 × 5,714.70
  4. Step 4: Simplify right side
    13,512.30x = 115,766,392.46
  5. Step 5: Solve for x
    x = 115,766,392.46/13,512.30
  6. Step 6: Final answer
    x = 8,567.48

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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.