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Finding the Fourth Proportional to 8,555.16, 11,806.98 and 5,197.71

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Solution

The fourth proportional to 8,555.16, 11,806.98 and 5,197.71 is: 7,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.16 : 11,806.98 = 5,197.71 : x
  2. Step 2: Convert to fraction form
    8,555.16/11,806.98 = 5,197.71/x
  3. Step 3: Cross multiply
    8,555.16x = 11,806.98 × 5,197.71
  4. Step 4: Simplify right side
    8,555.16x = 61,369,258.02
  5. Step 5: Solve for x
    x = 61,369,258.02/8,555.16
  6. Step 6: Final answer
    x = 7,173.36

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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.