Home / 7,285.16-10,912.20-5,333

Finding the Fourth Proportional to 7,285.16, 10,912.20 and 5,333

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Solution

The fourth proportional to 7,285.16, 10,912.20 and 5,333 is: 7,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.16 : 10,912.20 = 5,333 : x
  2. Step 2: Convert to fraction form
    7,285.16/10,912.20 = 5,333/x
  3. Step 3: Cross multiply
    7,285.16x = 10,912.20 × 5,333
  4. Step 4: Simplify right side
    7,285.16x = 58,194,762.60
  5. Step 5: Solve for x
    x = 58,194,762.60/7,285.16
  6. Step 6: Final answer
    x = 7,988.12

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Why These Related Problems?

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