Home / 11,157.30-15,397.23-6,121.43

Finding the Fourth Proportional to 11,157.30, 15,397.23 and 6,121.43

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Solution

The fourth proportional to 11,157.30, 15,397.23 and 6,121.43 is: 8,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.30 : 15,397.23 = 6,121.43 : x
  2. Step 2: Convert to fraction form
    11,157.30/15,397.23 = 6,121.43/x
  3. Step 3: Cross multiply
    11,157.30x = 15,397.23 × 6,121.43
  4. Step 4: Simplify right side
    11,157.30x = 94,253,069.35
  5. Step 5: Solve for x
    x = 94,253,069.35/11,157.30
  6. Step 6: Final answer
    x = 8,447.66

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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.