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Finding the Fourth Proportional to 8,672.06, 13,009.26 and 3,477.50

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Solution

The fourth proportional to 8,672.06, 13,009.26 and 3,477.50 is: 5,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.06 : 13,009.26 = 3,477.50 : x
  2. Step 2: Convert to fraction form
    8,672.06/13,009.26 = 3,477.50/x
  3. Step 3: Cross multiply
    8,672.06x = 13,009.26 × 3,477.50
  4. Step 4: Simplify right side
    8,672.06x = 45,239,701.65
  5. Step 5: Solve for x
    x = 45,239,701.65/8,672.06
  6. Step 6: Final answer
    x = 5,216.72

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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.