Home / 7,389.63-11,087.68-4,311.63

Finding the Fourth Proportional to 7,389.63, 11,087.68 and 4,311.63

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Solution

The fourth proportional to 7,389.63, 11,087.68 and 4,311.63 is: 6,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.63 : 11,087.68 = 4,311.63 : x
  2. Step 2: Convert to fraction form
    7,389.63/11,087.68 = 4,311.63/x
  3. Step 3: Cross multiply
    7,389.63x = 11,087.68 × 4,311.63
  4. Step 4: Simplify right side
    7,389.63x = 47,805,973.72
  5. Step 5: Solve for x
    x = 47,805,973.72/7,389.63
  6. Step 6: Final answer
    x = 6,469.33

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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.