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Finding the Fourth Proportional to 8,855.74, 13,285.32 and 3,012.22

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Solution

The fourth proportional to 8,855.74, 13,285.32 and 3,012.22 is: 4,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.74 : 13,285.32 = 3,012.22 : x
  2. Step 2: Convert to fraction form
    8,855.74/13,285.32 = 3,012.22/x
  3. Step 3: Cross multiply
    8,855.74x = 13,285.32 × 3,012.22
  4. Step 4: Simplify right side
    8,855.74x = 40,018,306.61
  5. Step 5: Solve for x
    x = 40,018,306.61/8,855.74
  6. Step 6: Final answer
    x = 4,518.91

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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.