Home / 8,257.05-12,385.59-3,511.99

Finding the Fourth Proportional to 8,257.05, 12,385.59 and 3,511.99

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Solution

The fourth proportional to 8,257.05, 12,385.59 and 3,511.99 is: 5,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.05 : 12,385.59 = 3,511.99 : x
  2. Step 2: Convert to fraction form
    8,257.05/12,385.59 = 3,511.99/x
  3. Step 3: Cross multiply
    8,257.05x = 12,385.59 × 3,511.99
  4. Step 4: Simplify right side
    8,257.05x = 43,497,988.74
  5. Step 5: Solve for x
    x = 43,497,988.74/8,257.05
  6. Step 6: Final answer
    x = 5,267.98

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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.