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Finding the Fourth Proportional to 19,515.93, 29,252.93 and 8,427.84

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Solution

The fourth proportional to 19,515.93, 29,252.93 and 8,427.84 is: 12,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.93 : 29,252.93 = 8,427.84 : x
  2. Step 2: Convert to fraction form
    19,515.93/29,252.93 = 8,427.84/x
  3. Step 3: Cross multiply
    19,515.93x = 29,252.93 × 8,427.84
  4. Step 4: Simplify right side
    19,515.93x = 246,539,013.57
  5. Step 5: Solve for x
    x = 246,539,013.57/19,515.93
  6. Step 6: Final answer
    x = 12,632.71

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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.