Home / 9,126.42-13,689.62-2,551.78

Finding the Fourth Proportional to 9,126.42, 13,689.62 and 2,551.78

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Solution

The fourth proportional to 9,126.42, 13,689.62 and 2,551.78 is: 3,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.42 : 13,689.62 = 2,551.78 : x
  2. Step 2: Convert to fraction form
    9,126.42/13,689.62 = 2,551.78/x
  3. Step 3: Cross multiply
    9,126.42x = 13,689.62 × 2,551.78
  4. Step 4: Simplify right side
    9,126.42x = 34,932,898.52
  5. Step 5: Solve for x
    x = 34,932,898.52/9,126.42
  6. Step 6: Final answer
    x = 3,827.67

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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.