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Finding the Fourth Proportional to 8,755.70, 12,082.79 and 4,776.98

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Solution

The fourth proportional to 8,755.70, 12,082.79 and 4,776.98 is: 6,592.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.70 : 12,082.79 = 4,776.98 : x
  2. Step 2: Convert to fraction form
    8,755.70/12,082.79 = 4,776.98/x
  3. Step 3: Cross multiply
    8,755.70x = 12,082.79 × 4,776.98
  4. Step 4: Simplify right side
    8,755.70x = 57,719,288.32
  5. Step 5: Solve for x
    x = 57,719,288.32/8,755.70
  6. Step 6: Final answer
    x = 6,592.19

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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.