Home / 10,057.45-15,086.58-4,789.75

Finding the Fourth Proportional to 10,057.45, 15,086.58 and 4,789.75

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Solution

The fourth proportional to 10,057.45, 15,086.58 and 4,789.75 is: 7,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,057.45 : 15,086.58 = 4,789.75 : x
  2. Step 2: Convert to fraction form
    10,057.45/15,086.58 = 4,789.75/x
  3. Step 3: Cross multiply
    10,057.45x = 15,086.58 × 4,789.75
  4. Step 4: Simplify right side
    10,057.45x = 72,260,946.56
  5. Step 5: Solve for x
    x = 72,260,946.56/10,057.45
  6. Step 6: Final answer
    x = 7,184.82

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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.