Home / 13,784.80-20,633.31-10,979.98

Finding the Fourth Proportional to 13,784.80, 20,633.31 and 10,979.98

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Solution

The fourth proportional to 13,784.80, 20,633.31 and 10,979.98 is: 16,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.80 : 20,633.31 = 10,979.98 : x
  2. Step 2: Convert to fraction form
    13,784.80/20,633.31 = 10,979.98/x
  3. Step 3: Cross multiply
    13,784.80x = 20,633.31 × 10,979.98
  4. Step 4: Simplify right side
    13,784.80x = 226,553,331.13
  5. Step 5: Solve for x
    x = 226,553,331.13/13,784.80
  6. Step 6: Final answer
    x = 16,435.01

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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.