Home / 11,583.20-15,984.81-6,278.02

Finding the Fourth Proportional to 11,583.20, 15,984.81 and 6,278.02

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Solution

The fourth proportional to 11,583.20, 15,984.81 and 6,278.02 is: 8,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.20 : 15,984.81 = 6,278.02 : x
  2. Step 2: Convert to fraction form
    11,583.20/15,984.81 = 6,278.02/x
  3. Step 3: Cross multiply
    11,583.20x = 15,984.81 × 6,278.02
  4. Step 4: Simplify right side
    11,583.20x = 100,352,916.91
  5. Step 5: Solve for x
    x = 100,352,916.91/11,583.20
  6. Step 6: Final answer
    x = 8,663.66

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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.