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Finding the Fourth Proportional to 8,806.68, 13,211.64 and 7,177.50

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Solution

The fourth proportional to 8,806.68, 13,211.64 and 7,177.50 is: 10,767.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.68 : 13,211.64 = 7,177.50 : x
  2. Step 2: Convert to fraction form
    8,806.68/13,211.64 = 7,177.50/x
  3. Step 3: Cross multiply
    8,806.68x = 13,211.64 × 7,177.50
  4. Step 4: Simplify right side
    8,806.68x = 94,826,546.10
  5. Step 5: Solve for x
    x = 94,826,546.10/8,806.68
  6. Step 6: Final answer
    x = 10,767.57

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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.