Home / 7,116.20-10,674.30-5,647.40

Finding the Fourth Proportional to 7,116.20, 10,674.30 and 5,647.40

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Solution

The fourth proportional to 7,116.20, 10,674.30 and 5,647.40 is: 8,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.20 : 10,674.30 = 5,647.40 : x
  2. Step 2: Convert to fraction form
    7,116.20/10,674.30 = 5,647.40/x
  3. Step 3: Cross multiply
    7,116.20x = 10,674.30 × 5,647.40
  4. Step 4: Simplify right side
    7,116.20x = 60,282,041.82
  5. Step 5: Solve for x
    x = 60,282,041.82/7,116.20
  6. Step 6: Final answer
    x = 8,471.10

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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.