Home / 8,424.32-11,626.34-4,839.77

Finding the Fourth Proportional to 8,424.32, 11,626.34 and 4,839.77

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Solution

The fourth proportional to 8,424.32, 11,626.34 and 4,839.77 is: 6,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.32 : 11,626.34 = 4,839.77 : x
  2. Step 2: Convert to fraction form
    8,424.32/11,626.34 = 4,839.77/x
  3. Step 3: Cross multiply
    8,424.32x = 11,626.34 × 4,839.77
  4. Step 4: Simplify right side
    8,424.32x = 56,268,816.41
  5. Step 5: Solve for x
    x = 56,268,816.41/8,424.32
  6. Step 6: Final answer
    x = 6,679.33

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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.