Home / 11,157.64-15,397.02-6,121.73

Finding the Fourth Proportional to 11,157.64, 15,397.02 and 6,121.73

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Solution

The fourth proportional to 11,157.64, 15,397.02 and 6,121.73 is: 8,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.64 : 15,397.02 = 6,121.73 : x
  2. Step 2: Convert to fraction form
    11,157.64/15,397.02 = 6,121.73/x
  3. Step 3: Cross multiply
    11,157.64x = 15,397.02 × 6,121.73
  4. Step 4: Simplify right side
    11,157.64x = 94,256,437.74
  5. Step 5: Solve for x
    x = 94,256,437.74/11,157.64
  6. Step 6: Final answer
    x = 8,447.71

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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.