Home / 13,491.51-20,224.26-8,548.89

Finding the Fourth Proportional to 13,491.51, 20,224.26 and 8,548.89

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Solution

The fourth proportional to 13,491.51, 20,224.26 and 8,548.89 is: 12,815.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.51 : 20,224.26 = 8,548.89 : x
  2. Step 2: Convert to fraction form
    13,491.51/20,224.26 = 8,548.89/x
  3. Step 3: Cross multiply
    13,491.51x = 20,224.26 × 8,548.89
  4. Step 4: Simplify right side
    13,491.51x = 172,894,974.07
  5. Step 5: Solve for x
    x = 172,894,974.07/13,491.51
  6. Step 6: Final answer
    x = 12,815.09

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1.5x scale

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.