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Finding the Fourth Proportional to 8,861.77, 13,307.82 and 5,919.13

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Solution

The fourth proportional to 8,861.77, 13,307.82 and 5,919.13 is: 8,888.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.77 : 13,307.82 = 5,919.13 : x
  2. Step 2: Convert to fraction form
    8,861.77/13,307.82 = 5,919.13/x
  3. Step 3: Cross multiply
    8,861.77x = 13,307.82 × 5,919.13
  4. Step 4: Simplify right side
    8,861.77x = 78,770,650.06
  5. Step 5: Solve for x
    x = 78,770,650.06/8,861.77
  6. Step 6: Final answer
    x = 8,888.82

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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.