Home / 8,424.27-11,626.16-4,647.78

Finding the Fourth Proportional to 8,424.27, 11,626.16 and 4,647.78

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Solution

The fourth proportional to 8,424.27, 11,626.16 and 4,647.78 is: 6,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.27 : 11,626.16 = 4,647.78 : x
  2. Step 2: Convert to fraction form
    8,424.27/11,626.16 = 4,647.78/x
  3. Step 3: Cross multiply
    8,424.27x = 11,626.16 × 4,647.78
  4. Step 4: Simplify right side
    8,424.27x = 54,035,810.69
  5. Step 5: Solve for x
    x = 54,035,810.69/8,424.27
  6. Step 6: Final answer
    x = 6,414.30

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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.