Home / 10,380.28-15,578.46-3,810.76

Finding the Fourth Proportional to 10,380.28, 15,578.46 and 3,810.76

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Solution

The fourth proportional to 10,380.28, 15,578.46 and 3,810.76 is: 5,719.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.28 : 15,578.46 = 3,810.76 : x
  2. Step 2: Convert to fraction form
    10,380.28/15,578.46 = 3,810.76/x
  3. Step 3: Cross multiply
    10,380.28x = 15,578.46 × 3,810.76
  4. Step 4: Simplify right side
    10,380.28x = 59,365,772.23
  5. Step 5: Solve for x
    x = 59,365,772.23/10,380.28
  6. Step 6: Final answer
    x = 5,719.09

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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.