Home / 8,140.32-12,219.12-3,526.56

Finding the Fourth Proportional to 8,140.32, 12,219.12 and 3,526.56

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Solution

The fourth proportional to 8,140.32, 12,219.12 and 3,526.56 is: 5,293.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.32 : 12,219.12 = 3,526.56 : x
  2. Step 2: Convert to fraction form
    8,140.32/12,219.12 = 3,526.56/x
  3. Step 3: Cross multiply
    8,140.32x = 12,219.12 × 3,526.56
  4. Step 4: Simplify right side
    8,140.32x = 43,091,459.83
  5. Step 5: Solve for x
    x = 43,091,459.83/8,140.32
  6. Step 6: Final answer
    x = 5,293.58

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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.