Home / 10,171.91-15,257.97-4,905.70

Finding the Fourth Proportional to 10,171.91, 15,257.97 and 4,905.70

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Solution

The fourth proportional to 10,171.91, 15,257.97 and 4,905.70 is: 7,358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,171.91 : 15,257.97 = 4,905.70 : x
  2. Step 2: Convert to fraction form
    10,171.91/15,257.97 = 4,905.70/x
  3. Step 3: Cross multiply
    10,171.91x = 15,257.97 × 4,905.70
  4. Step 4: Simplify right side
    10,171.91x = 74,851,023.43
  5. Step 5: Solve for x
    x = 74,851,023.43/10,171.91
  6. Step 6: Final answer
    x = 7,358.60

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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.