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Finding the Fourth Proportional to 13,052.59, 18,012.38 and 7,084.21

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Solution

The fourth proportional to 13,052.59, 18,012.38 and 7,084.21 is: 9,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052.59 : 18,012.38 = 7,084.21 : x
  2. Step 2: Convert to fraction form
    13,052.59/18,012.38 = 7,084.21/x
  3. Step 3: Cross multiply
    13,052.59x = 18,012.38 × 7,084.21
  4. Step 4: Simplify right side
    13,052.59x = 127,603,435.84
  5. Step 5: Solve for x
    x = 127,603,435.84/13,052.59
  6. Step 6: Final answer
    x = 9,776.10

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Why These Related Problems?

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