Home / 9,011.31-13,516.20-3,087.90

Finding the Fourth Proportional to 9,011.31, 13,516.20 and 3,087.90

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Solution

The fourth proportional to 9,011.31, 13,516.20 and 3,087.90 is: 4,631.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.31 : 13,516.20 = 3,087.90 : x
  2. Step 2: Convert to fraction form
    9,011.31/13,516.20 = 3,087.90/x
  3. Step 3: Cross multiply
    9,011.31x = 13,516.20 × 3,087.90
  4. Step 4: Simplify right side
    9,011.31x = 41,736,673.98
  5. Step 5: Solve for x
    x = 41,736,673.98/9,011.31
  6. Step 6: Final answer
    x = 4,631.59

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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.