Home / 13,789.98-20,672.01-7,621.02

Finding the Fourth Proportional to 13,789.98, 20,672.01 and 7,621.02

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Solution

The fourth proportional to 13,789.98, 20,672.01 and 7,621.02 is: 11,424.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.98 : 20,672.01 = 7,621.02 : x
  2. Step 2: Convert to fraction form
    13,789.98/20,672.01 = 7,621.02/x
  3. Step 3: Cross multiply
    13,789.98x = 20,672.01 × 7,621.02
  4. Step 4: Simplify right side
    13,789.98x = 157,541,801.65
  5. Step 5: Solve for x
    x = 157,541,801.65/13,789.98
  6. Step 6: Final answer
    x = 11,424.37

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1.5x scale

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.