Home / 13,610.58-20,380.23-8,915.82

Finding the Fourth Proportional to 13,610.58, 20,380.23 and 8,915.82

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Solution

The fourth proportional to 13,610.58, 20,380.23 and 8,915.82 is: 13,350.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.58 : 20,380.23 = 8,915.82 : x
  2. Step 2: Convert to fraction form
    13,610.58/20,380.23 = 8,915.82/x
  3. Step 3: Cross multiply
    13,610.58x = 20,380.23 × 8,915.82
  4. Step 4: Simplify right side
    13,610.58x = 181,706,462.24
  5. Step 5: Solve for x
    x = 181,706,462.24/13,610.58
  6. Step 6: Final answer
    x = 13,350.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.