Home / 15,378.41-21,227.43-9,562.07

Finding the Fourth Proportional to 15,378.41, 21,227.43 and 9,562.07

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Solution

The fourth proportional to 15,378.41, 21,227.43 and 9,562.07 is: 13,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.41 : 21,227.43 = 9,562.07 : x
  2. Step 2: Convert to fraction form
    15,378.41/21,227.43 = 9,562.07/x
  3. Step 3: Cross multiply
    15,378.41x = 21,227.43 × 9,562.07
  4. Step 4: Simplify right side
    15,378.41x = 202,978,065.44
  5. Step 5: Solve for x
    x = 202,978,065.44/15,378.41
  6. Step 6: Final answer
    x = 13,198.90

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1.5x scale

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.