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Finding the Fourth Proportional to 8,360.80, 12,526.80 and 4,406.20

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Solution

The fourth proportional to 8,360.80, 12,526.80 and 4,406.20 is: 6,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.80 : 12,526.80 = 4,406.20 : x
  2. Step 2: Convert to fraction form
    8,360.80/12,526.80 = 4,406.20/x
  3. Step 3: Cross multiply
    8,360.80x = 12,526.80 × 4,406.20
  4. Step 4: Simplify right side
    8,360.80x = 55,195,586.16
  5. Step 5: Solve for x
    x = 55,195,586.16/8,360.80
  6. Step 6: Final answer
    x = 6,601.71

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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.