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Finding the Fourth Proportional to 8,807, 13,210.56 and 2,651

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Solution

The fourth proportional to 8,807, 13,210.56 and 2,651 is: 3,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807 : 13,210.56 = 2,651 : x
  2. Step 2: Convert to fraction form
    8,807/13,210.56 = 2,651/x
  3. Step 3: Cross multiply
    8,807x = 13,210.56 × 2,651
  4. Step 4: Simplify right side
    8,807x = 35,021,194.56
  5. Step 5: Solve for x
    x = 35,021,194.56/8,807
  6. Step 6: Final answer
    x = 3,976.52

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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.