Home / 15,418.93-21,297.09-11,163.25

Finding the Fourth Proportional to 15,418.93, 21,297.09 and 11,163.25

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Solution

The fourth proportional to 15,418.93, 21,297.09 and 11,163.25 is: 15,419.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.93 : 21,297.09 = 11,163.25 : x
  2. Step 2: Convert to fraction form
    15,418.93/21,297.09 = 11,163.25/x
  3. Step 3: Cross multiply
    15,418.93x = 21,297.09 × 11,163.25
  4. Step 4: Simplify right side
    15,418.93x = 237,744,688.63
  5. Step 5: Solve for x
    x = 237,744,688.63/15,418.93
  6. Step 6: Final answer
    x = 15,419.02

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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.