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Finding the Fourth Proportional to 13,323.16, 18,385.84 and 7,354.87

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Solution

The fourth proportional to 13,323.16, 18,385.84 and 7,354.87 is: 10,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.16 : 18,385.84 = 7,354.87 : x
  2. Step 2: Convert to fraction form
    13,323.16/18,385.84 = 7,354.87/x
  3. Step 3: Cross multiply
    13,323.16x = 18,385.84 × 7,354.87
  4. Step 4: Simplify right side
    13,323.16x = 135,225,423.68
  5. Step 5: Solve for x
    x = 135,225,423.68/13,323.16
  6. Step 6: Final answer
    x = 10,149.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.