Home / 11,388.20-15,714.81-6,352.02

Finding the Fourth Proportional to 11,388.20, 15,714.81 and 6,352.02

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Solution

The fourth proportional to 11,388.20, 15,714.81 and 6,352.02 is: 8,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.20 : 15,714.81 = 6,352.02 : x
  2. Step 2: Convert to fraction form
    11,388.20/15,714.81 = 6,352.02/x
  3. Step 3: Cross multiply
    11,388.20x = 15,714.81 × 6,352.02
  4. Step 4: Simplify right side
    11,388.20x = 99,820,787.42
  5. Step 5: Solve for x
    x = 99,820,787.42/11,388.20
  6. Step 6: Final answer
    x = 8,765.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.