Home / 7,621.70-11,427.92-4,986.02

Finding the Fourth Proportional to 7,621.70, 11,427.92 and 4,986.02

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Solution

The fourth proportional to 7,621.70, 11,427.92 and 4,986.02 is: 7,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.70 : 11,427.92 = 4,986.02 : x
  2. Step 2: Convert to fraction form
    7,621.70/11,427.92 = 4,986.02/x
  3. Step 3: Cross multiply
    7,621.70x = 11,427.92 × 4,986.02
  4. Step 4: Simplify right side
    7,621.70x = 56,979,837.68
  5. Step 5: Solve for x
    x = 56,979,837.68/7,621.70
  6. Step 6: Final answer
    x = 7,476.00

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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.