Home / 12,545.31-18,819.26-4,226.25

Finding the Fourth Proportional to 12,545.31, 18,819.26 and 4,226.25

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Solution

The fourth proportional to 12,545.31, 18,819.26 and 4,226.25 is: 6,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.31 : 18,819.26 = 4,226.25 : x
  2. Step 2: Convert to fraction form
    12,545.31/18,819.26 = 4,226.25/x
  3. Step 3: Cross multiply
    12,545.31x = 18,819.26 × 4,226.25
  4. Step 4: Simplify right side
    12,545.31x = 79,534,814.04
  5. Step 5: Solve for x
    x = 79,534,814.04/12,545.31
  6. Step 6: Final answer
    x = 6,339.81

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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.