Home / 15,322.95-21,144.38-8,608.05

Finding the Fourth Proportional to 15,322.95, 21,144.38 and 8,608.05

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Solution

The fourth proportional to 15,322.95, 21,144.38 and 8,608.05 is: 11,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.95 : 21,144.38 = 8,608.05 : x
  2. Step 2: Convert to fraction form
    15,322.95/21,144.38 = 8,608.05/x
  3. Step 3: Cross multiply
    15,322.95x = 21,144.38 × 8,608.05
  4. Step 4: Simplify right side
    15,322.95x = 182,011,837.22
  5. Step 5: Solve for x
    x = 182,011,837.22/15,322.95
  6. Step 6: Final answer
    x = 11,878.38

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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.