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Finding the Fourth Proportional to 17,801.30, 26,689.80 and 8,445.80

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Solution

The fourth proportional to 17,801.30, 26,689.80 and 8,445.80 is: 12,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,801.30 : 26,689.80 = 8,445.80 : x
  2. Step 2: Convert to fraction form
    17,801.30/26,689.80 = 8,445.80/x
  3. Step 3: Cross multiply
    17,801.30x = 26,689.80 × 8,445.80
  4. Step 4: Simplify right side
    17,801.30x = 225,416,712.84
  5. Step 5: Solve for x
    x = 225,416,712.84/17,801.30
  6. Step 6: Final answer
    x = 12,662.94

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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.