Home / 8,555.41-12,837.21-4,170.47

Finding the Fourth Proportional to 8,555.41, 12,837.21 and 4,170.47

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Solution

The fourth proportional to 8,555.41, 12,837.21 and 4,170.47 is: 6,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.41 : 12,837.21 = 4,170.47 : x
  2. Step 2: Convert to fraction form
    8,555.41/12,837.21 = 4,170.47/x
  3. Step 3: Cross multiply
    8,555.41x = 12,837.21 × 4,170.47
  4. Step 4: Simplify right side
    8,555.41x = 53,537,231.28
  5. Step 5: Solve for x
    x = 53,537,231.28/8,555.41
  6. Step 6: Final answer
    x = 6,257.71

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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.