Home / 14,861.80-20,511.38-9,198.37

Finding the Fourth Proportional to 14,861.80, 20,511.38 and 9,198.37

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Solution

The fourth proportional to 14,861.80, 20,511.38 and 9,198.37 is: 12,695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861.80 : 20,511.38 = 9,198.37 : x
  2. Step 2: Convert to fraction form
    14,861.80/20,511.38 = 9,198.37/x
  3. Step 3: Cross multiply
    14,861.80x = 20,511.38 × 9,198.37
  4. Step 4: Simplify right side
    14,861.80x = 188,671,262.45
  5. Step 5: Solve for x
    x = 188,671,262.45/14,861.80
  6. Step 6: Final answer
    x = 12,695.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.