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Finding the Fourth Proportional to 17,886.76, 26,813.24 and 8,521.86

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Solution

The fourth proportional to 17,886.76, 26,813.24 and 8,521.86 is: 12,774.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,886.76 : 26,813.24 = 8,521.86 : x
  2. Step 2: Convert to fraction form
    17,886.76/26,813.24 = 8,521.86/x
  3. Step 3: Cross multiply
    17,886.76x = 26,813.24 × 8,521.86
  4. Step 4: Simplify right side
    17,886.76x = 228,498,677.43
  5. Step 5: Solve for x
    x = 228,498,677.43/17,886.76
  6. Step 6: Final answer
    x = 12,774.74

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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.