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Finding the Fourth Proportional to 8,686.71, 13,043.03 and 4,993.11

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Solution

The fourth proportional to 8,686.71, 13,043.03 and 4,993.11 is: 7,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.71 : 13,043.03 = 4,993.11 : x
  2. Step 2: Convert to fraction form
    8,686.71/13,043.03 = 4,993.11/x
  3. Step 3: Cross multiply
    8,686.71x = 13,043.03 × 4,993.11
  4. Step 4: Simplify right side
    8,686.71x = 65,125,258.56
  5. Step 5: Solve for x
    x = 65,125,258.56/8,686.71
  6. Step 6: Final answer
    x = 7,497.11

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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.