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Finding the Fourth Proportional to 8,017.60, 11,064.64 and 4,480.80

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Solution

The fourth proportional to 8,017.60, 11,064.64 and 4,480.80 is: 6,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,017.60 : 11,064.64 = 4,480.80 : x
  2. Step 2: Convert to fraction form
    8,017.60/11,064.64 = 4,480.80/x
  3. Step 3: Cross multiply
    8,017.60x = 11,064.64 × 4,480.80
  4. Step 4: Simplify right side
    8,017.60x = 49,578,438.91
  5. Step 5: Solve for x
    x = 49,578,438.91/8,017.60
  6. Step 6: Final answer
    x = 6,183.70

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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.