Home / 13,884.72-19,167.21-8,855.79

Finding the Fourth Proportional to 13,884.72, 19,167.21 and 8,855.79

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Solution

The fourth proportional to 13,884.72, 19,167.21 and 8,855.79 is: 12,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.72 : 19,167.21 = 8,855.79 : x
  2. Step 2: Convert to fraction form
    13,884.72/19,167.21 = 8,855.79/x
  3. Step 3: Cross multiply
    13,884.72x = 19,167.21 × 8,855.79
  4. Step 4: Simplify right side
    13,884.72x = 169,740,786.65
  5. Step 5: Solve for x
    x = 169,740,786.65/13,884.72
  6. Step 6: Final answer
    x = 12,225.01

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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.