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Finding the Fourth Proportional to 8,964.31, 13,447.23 and 2,390.50

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Solution

The fourth proportional to 8,964.31, 13,447.23 and 2,390.50 is: 3,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.31 : 13,447.23 = 2,390.50 : x
  2. Step 2: Convert to fraction form
    8,964.31/13,447.23 = 2,390.50/x
  3. Step 3: Cross multiply
    8,964.31x = 13,447.23 × 2,390.50
  4. Step 4: Simplify right side
    8,964.31x = 32,145,603.32
  5. Step 5: Solve for x
    x = 32,145,603.32/8,964.31
  6. Step 6: Final answer
    x = 3,585.95

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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.