Home / 13,355.62-18,428.27-8,576.42

Finding the Fourth Proportional to 13,355.62, 18,428.27 and 8,576.42

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Solution

The fourth proportional to 13,355.62, 18,428.27 and 8,576.42 is: 11,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.62 : 18,428.27 = 8,576.42 : x
  2. Step 2: Convert to fraction form
    13,355.62/18,428.27 = 8,576.42/x
  3. Step 3: Cross multiply
    13,355.62x = 18,428.27 × 8,576.42
  4. Step 4: Simplify right side
    13,355.62x = 158,048,448.37
  5. Step 5: Solve for x
    x = 158,048,448.37/13,355.62
  6. Step 6: Final answer
    x = 11,833.86

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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.