Home / 10,240.92-15,361.20-3,315.60

Finding the Fourth Proportional to 10,240.92, 15,361.20 and 3,315.60

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Solution

The fourth proportional to 10,240.92, 15,361.20 and 3,315.60 is: 4,973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.92 : 15,361.20 = 3,315.60 : x
  2. Step 2: Convert to fraction form
    10,240.92/15,361.20 = 3,315.60/x
  3. Step 3: Cross multiply
    10,240.92x = 15,361.20 × 3,315.60
  4. Step 4: Simplify right side
    10,240.92x = 50,931,594.72
  5. Step 5: Solve for x
    x = 50,931,594.72/10,240.92
  6. Step 6: Final answer
    x = 4,973.34

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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.