Home / 6,912.40-10,352.04-3,787.72

Finding the Fourth Proportional to 6,912.40, 10,352.04 and 3,787.72

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Solution

The fourth proportional to 6,912.40, 10,352.04 and 3,787.72 is: 5,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.40 : 10,352.04 = 3,787.72 : x
  2. Step 2: Convert to fraction form
    6,912.40/10,352.04 = 3,787.72/x
  3. Step 3: Cross multiply
    6,912.40x = 10,352.04 × 3,787.72
  4. Step 4: Simplify right side
    6,912.40x = 39,210,628.95
  5. Step 5: Solve for x
    x = 39,210,628.95/6,912.40
  6. Step 6: Final answer
    x = 5,672.51

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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.