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Finding the Fourth Proportional to 17,885.69, 26,829.09 and 8,526.72

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Solution

The fourth proportional to 17,885.69, 26,829.09 and 8,526.72 is: 12,790.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,885.69 : 26,829.09 = 8,526.72 : x
  2. Step 2: Convert to fraction form
    17,885.69/26,829.09 = 8,526.72/x
  3. Step 3: Cross multiply
    17,885.69x = 26,829.09 × 8,526.72
  4. Step 4: Simplify right side
    17,885.69x = 228,764,138.28
  5. Step 5: Solve for x
    x = 228,764,138.28/17,885.69
  6. Step 6: Final answer
    x = 12,790.34

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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.