Home / 15,621.26-21,534.90-11,137.22

Finding the Fourth Proportional to 15,621.26, 21,534.90 and 11,137.22

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Solution

The fourth proportional to 15,621.26, 21,534.90 and 11,137.22 is: 15,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.26 : 21,534.90 = 11,137.22 : x
  2. Step 2: Convert to fraction form
    15,621.26/21,534.90 = 11,137.22/x
  3. Step 3: Cross multiply
    15,621.26x = 21,534.90 × 11,137.22
  4. Step 4: Simplify right side
    15,621.26x = 239,838,918.98
  5. Step 5: Solve for x
    x = 239,838,918.98/15,621.26
  6. Step 6: Final answer
    x = 15,353.37

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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.