Home / 12,237.12-18,355.84-5,661.44

Finding the Fourth Proportional to 12,237.12, 18,355.84 and 5,661.44

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Solution

The fourth proportional to 12,237.12, 18,355.84 and 5,661.44 is: 8,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.12 : 18,355.84 = 5,661.44 : x
  2. Step 2: Convert to fraction form
    12,237.12/18,355.84 = 5,661.44/x
  3. Step 3: Cross multiply
    12,237.12x = 18,355.84 × 5,661.44
  4. Step 4: Simplify right side
    12,237.12x = 103,920,486.81
  5. Step 5: Solve for x
    x = 103,920,486.81/12,237.12
  6. Step 6: Final answer
    x = 8,492.23

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.