Home / 13,426.98-20,140.50-4,661.91

Finding the Fourth Proportional to 13,426.98, 20,140.50 and 4,661.91

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Solution

The fourth proportional to 13,426.98, 20,140.50 and 4,661.91 is: 6,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.98 : 20,140.50 = 4,661.91 : x
  2. Step 2: Convert to fraction form
    13,426.98/20,140.50 = 4,661.91/x
  3. Step 3: Cross multiply
    13,426.98x = 20,140.50 × 4,661.91
  4. Step 4: Simplify right side
    13,426.98x = 93,893,198.36
  5. Step 5: Solve for x
    x = 93,893,198.36/13,426.98
  6. Step 6: Final answer
    x = 6,992.88

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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.