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Finding the Fourth Proportional to 8,861.98, 13,292.49 and 2,705.50

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Solution

The fourth proportional to 8,861.98, 13,292.49 and 2,705.50 is: 4,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.98 : 13,292.49 = 2,705.50 : x
  2. Step 2: Convert to fraction form
    8,861.98/13,292.49 = 2,705.50/x
  3. Step 3: Cross multiply
    8,861.98x = 13,292.49 × 2,705.50
  4. Step 4: Simplify right side
    8,861.98x = 35,962,831.70
  5. Step 5: Solve for x
    x = 35,962,831.70/8,861.98
  6. Step 6: Final answer
    x = 4,058.10

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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.