Home / 7,787.18-11,674.24-3,401.30

Finding the Fourth Proportional to 7,787.18, 11,674.24 and 3,401.30

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Solution

The fourth proportional to 7,787.18, 11,674.24 and 3,401.30 is: 5,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.18 : 11,674.24 = 3,401.30 : x
  2. Step 2: Convert to fraction form
    7,787.18/11,674.24 = 3,401.30/x
  3. Step 3: Cross multiply
    7,787.18x = 11,674.24 × 3,401.30
  4. Step 4: Simplify right side
    7,787.18x = 39,707,592.51
  5. Step 5: Solve for x
    x = 39,707,592.51/7,787.18
  6. Step 6: Final answer
    x = 5,099.10

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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.