Home / 15,326.24-21,150.20-8,611.88

Finding the Fourth Proportional to 15,326.24, 21,150.20 and 8,611.88

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Solution

The fourth proportional to 15,326.24, 21,150.20 and 8,611.88 is: 11,884.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.24 : 21,150.20 = 8,611.88 : x
  2. Step 2: Convert to fraction form
    15,326.24/21,150.20 = 8,611.88/x
  3. Step 3: Cross multiply
    15,326.24x = 21,150.20 × 8,611.88
  4. Step 4: Simplify right side
    15,326.24x = 182,142,984.38
  5. Step 5: Solve for x
    x = 182,142,984.38/15,326.24
  6. Step 6: Final answer
    x = 11,884.39

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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.