Home / 8,439.91-11,647.38-4,902.94

Finding the Fourth Proportional to 8,439.91, 11,647.38 and 4,902.94

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Solution

The fourth proportional to 8,439.91, 11,647.38 and 4,902.94 is: 6,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.91 : 11,647.38 = 4,902.94 : x
  2. Step 2: Convert to fraction form
    8,439.91/11,647.38 = 4,902.94/x
  3. Step 3: Cross multiply
    8,439.91x = 11,647.38 × 4,902.94
  4. Step 4: Simplify right side
    8,439.91x = 57,106,438.24
  5. Step 5: Solve for x
    x = 57,106,438.24/8,439.91
  6. Step 6: Final answer
    x = 6,766.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.