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Finding the Fourth Proportional to 8,710.21, 13,062.07 and 2,865.25

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Solution

The fourth proportional to 8,710.21, 13,062.07 and 2,865.25 is: 4,296.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.21 : 13,062.07 = 2,865.25 : x
  2. Step 2: Convert to fraction form
    8,710.21/13,062.07 = 2,865.25/x
  3. Step 3: Cross multiply
    8,710.21x = 13,062.07 × 2,865.25
  4. Step 4: Simplify right side
    8,710.21x = 37,426,096.07
  5. Step 5: Solve for x
    x = 37,426,096.07/8,710.21
  6. Step 6: Final answer
    x = 4,296.81

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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.