Home / 10,378.76-15,570.45-2,982.64

Finding the Fourth Proportional to 10,378.76, 15,570.45 and 2,982.64

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Solution

The fourth proportional to 10,378.76, 15,570.45 and 2,982.64 is: 4,474.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.76 : 15,570.45 = 2,982.64 : x
  2. Step 2: Convert to fraction form
    10,378.76/15,570.45 = 2,982.64/x
  3. Step 3: Cross multiply
    10,378.76x = 15,570.45 × 2,982.64
  4. Step 4: Simplify right side
    10,378.76x = 46,441,046.99
  5. Step 5: Solve for x
    x = 46,441,046.99/10,378.76
  6. Step 6: Final answer
    x = 4,474.62

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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.