Home / 10,281.86-15,422.85-3,261.72

Finding the Fourth Proportional to 10,281.86, 15,422.85 and 3,261.72

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Solution

The fourth proportional to 10,281.86, 15,422.85 and 3,261.72 is: 4,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.86 : 15,422.85 = 3,261.72 : x
  2. Step 2: Convert to fraction form
    10,281.86/15,422.85 = 3,261.72/x
  3. Step 3: Cross multiply
    10,281.86x = 15,422.85 × 3,261.72
  4. Step 4: Simplify right side
    10,281.86x = 50,305,018.30
  5. Step 5: Solve for x
    x = 50,305,018.30/10,281.86
  6. Step 6: Final answer
    x = 4,892.60

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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.