Home / 16,854.60-25,231.98-12,491.64

Finding the Fourth Proportional to 16,854.60, 25,231.98 and 12,491.64

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Solution

The fourth proportional to 16,854.60, 25,231.98 and 12,491.64 is: 18,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,854.60 : 25,231.98 = 12,491.64 : x
  2. Step 2: Convert to fraction form
    16,854.60/25,231.98 = 12,491.64/x
  3. Step 3: Cross multiply
    16,854.60x = 25,231.98 × 12,491.64
  4. Step 4: Simplify right side
    16,854.60x = 315,188,810.65
  5. Step 5: Solve for x
    x = 315,188,810.65/16,854.60
  6. Step 6: Final answer
    x = 18,700.46

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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.