Home / 13,645.08-20,467.62-4,285.91

Finding the Fourth Proportional to 13,645.08, 20,467.62 and 4,285.91

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Solution

The fourth proportional to 13,645.08, 20,467.62 and 4,285.91 is: 6,428.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.08 : 20,467.62 = 4,285.91 : x
  2. Step 2: Convert to fraction form
    13,645.08/20,467.62 = 4,285.91/x
  3. Step 3: Cross multiply
    13,645.08x = 20,467.62 × 4,285.91
  4. Step 4: Simplify right side
    13,645.08x = 87,722,428.40
  5. Step 5: Solve for x
    x = 87,722,428.40/13,645.08
  6. Step 6: Final answer
    x = 6,428.87

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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.