Home / 6,376.18-8,803.38-3,989.77

Finding the Fourth Proportional to 6,376.18, 8,803.38 and 3,989.77

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Solution

The fourth proportional to 6,376.18, 8,803.38 and 3,989.77 is: 5,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.18 : 8,803.38 = 3,989.77 : x
  2. Step 2: Convert to fraction form
    6,376.18/8,803.38 = 3,989.77/x
  3. Step 3: Cross multiply
    6,376.18x = 8,803.38 × 3,989.77
  4. Step 4: Simplify right side
    6,376.18x = 35,123,461.42
  5. Step 5: Solve for x
    x = 35,123,461.42/6,376.18
  6. Step 6: Final answer
    x = 5,508.54

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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.