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Finding the Fourth Proportional to 12,883.86, 19,324.71 and 8,750.43

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Solution

The fourth proportional to 12,883.86, 19,324.71 and 8,750.43 is: 13,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.86 : 19,324.71 = 8,750.43 : x
  2. Step 2: Convert to fraction form
    12,883.86/19,324.71 = 8,750.43/x
  3. Step 3: Cross multiply
    12,883.86x = 19,324.71 × 8,750.43
  4. Step 4: Simplify right side
    12,883.86x = 169,099,522.13
  5. Step 5: Solve for x
    x = 169,099,522.13/12,883.86
  6. Step 6: Final answer
    x = 13,124.91

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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.