Home / 15,334.26-21,161.08-8,621.02

Finding the Fourth Proportional to 15,334.26, 21,161.08 and 8,621.02

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Solution

The fourth proportional to 15,334.26, 21,161.08 and 8,621.02 is: 11,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.26 : 21,161.08 = 8,621.02 : x
  2. Step 2: Convert to fraction form
    15,334.26/21,161.08 = 8,621.02/x
  3. Step 3: Cross multiply
    15,334.26x = 21,161.08 × 8,621.02
  4. Step 4: Simplify right side
    15,334.26x = 182,430,093.90
  5. Step 5: Solve for x
    x = 182,430,093.90/15,334.26
  6. Step 6: Final answer
    x = 11,896.90

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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.