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Finding the Fourth Proportional to 8,770.78, 13,153.07 and 2,529.11

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Solution

The fourth proportional to 8,770.78, 13,153.07 and 2,529.11 is: 3,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.78 : 13,153.07 = 2,529.11 : x
  2. Step 2: Convert to fraction form
    8,770.78/13,153.07 = 2,529.11/x
  3. Step 3: Cross multiply
    8,770.78x = 13,153.07 × 2,529.11
  4. Step 4: Simplify right side
    8,770.78x = 33,265,501.43
  5. Step 5: Solve for x
    x = 33,265,501.43/8,770.78
  6. Step 6: Final answer
    x = 3,792.77

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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.