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Finding the Fourth Proportional to 8,859.86, 13,285.73 and 3,014.90

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Solution

The fourth proportional to 8,859.86, 13,285.73 and 3,014.90 is: 4,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.86 : 13,285.73 = 3,014.90 : x
  2. Step 2: Convert to fraction form
    8,859.86/13,285.73 = 3,014.90/x
  3. Step 3: Cross multiply
    8,859.86x = 13,285.73 × 3,014.90
  4. Step 4: Simplify right side
    8,859.86x = 40,055,088.49
  5. Step 5: Solve for x
    x = 40,055,088.49/8,859.86
  6. Step 6: Final answer
    x = 4,520.96

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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.