Home / 8,505.20-12,752.58-3,305

Finding the Fourth Proportional to 8,505.20, 12,752.58 and 3,305

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Solution

The fourth proportional to 8,505.20, 12,752.58 and 3,305 is: 4,955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.20 : 12,752.58 = 3,305 : x
  2. Step 2: Convert to fraction form
    8,505.20/12,752.58 = 3,305/x
  3. Step 3: Cross multiply
    8,505.20x = 12,752.58 × 3,305
  4. Step 4: Simplify right side
    8,505.20x = 42,147,276.90
  5. Step 5: Solve for x
    x = 42,147,276.90/8,505.20
  6. Step 6: Final answer
    x = 4,955.47

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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.