Home / 10,860.96-14,989.20-6,145.44

Finding the Fourth Proportional to 10,860.96, 14,989.20 and 6,145.44

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Solution

The fourth proportional to 10,860.96, 14,989.20 and 6,145.44 is: 8,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.96 : 14,989.20 = 6,145.44 : x
  2. Step 2: Convert to fraction form
    10,860.96/14,989.20 = 6,145.44/x
  3. Step 3: Cross multiply
    10,860.96x = 14,989.20 × 6,145.44
  4. Step 4: Simplify right side
    10,860.96x = 92,115,229.25
  5. Step 5: Solve for x
    x = 92,115,229.25/10,860.96
  6. Step 6: Final answer
    x = 8,481.32

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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.