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Finding the Fourth Proportional to 17,631.62, 26,428.74 and 8,263.74

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Solution

The fourth proportional to 17,631.62, 26,428.74 and 8,263.74 is: 12,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,631.62 : 26,428.74 = 8,263.74 : x
  2. Step 2: Convert to fraction form
    17,631.62/26,428.74 = 8,263.74/x
  3. Step 3: Cross multiply
    17,631.62x = 26,428.74 × 8,263.74
  4. Step 4: Simplify right side
    17,631.62x = 218,400,235.89
  5. Step 5: Solve for x
    x = 218,400,235.89/17,631.62
  6. Step 6: Final answer
    x = 12,386.85

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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.