Home / 14,477.80-19,979.94-8,890.60

Finding the Fourth Proportional to 14,477.80, 19,979.94 and 8,890.60

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Solution

The fourth proportional to 14,477.80, 19,979.94 and 8,890.60 is: 12,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,477.80 : 19,979.94 = 8,890.60 : x
  2. Step 2: Convert to fraction form
    14,477.80/19,979.94 = 8,890.60/x
  3. Step 3: Cross multiply
    14,477.80x = 19,979.94 × 8,890.60
  4. Step 4: Simplify right side
    14,477.80x = 177,633,654.56
  5. Step 5: Solve for x
    x = 177,633,654.56/14,477.80
  6. Step 6: Final answer
    x = 12,269.38

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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.