Home / 7,953.72-11,930.91-2,688.85

Finding the Fourth Proportional to 7,953.72, 11,930.91 and 2,688.85

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Solution

The fourth proportional to 7,953.72, 11,930.91 and 2,688.85 is: 4,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.72 : 11,930.91 = 2,688.85 : x
  2. Step 2: Convert to fraction form
    7,953.72/11,930.91 = 2,688.85/x
  3. Step 3: Cross multiply
    7,953.72x = 11,930.91 × 2,688.85
  4. Step 4: Simplify right side
    7,953.72x = 32,080,427.35
  5. Step 5: Solve for x
    x = 32,080,427.35/7,953.72
  6. Step 6: Final answer
    x = 4,033.39

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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.