Home / 10,311.52-15,466.56-3,291.40

Finding the Fourth Proportional to 10,311.52, 15,466.56 and 3,291.40

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Solution

The fourth proportional to 10,311.52, 15,466.56 and 3,291.40 is: 4,936.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311.52 : 15,466.56 = 3,291.40 : x
  2. Step 2: Convert to fraction form
    10,311.52/15,466.56 = 3,291.40/x
  3. Step 3: Cross multiply
    10,311.52x = 15,466.56 × 3,291.40
  4. Step 4: Simplify right side
    10,311.52x = 50,906,635.58
  5. Step 5: Solve for x
    x = 50,906,635.58/10,311.52
  6. Step 6: Final answer
    x = 4,936.87

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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.