Home / 12,623.80-18,916.26-5,226.88

Finding the Fourth Proportional to 12,623.80, 18,916.26 and 5,226.88

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Solution

The fourth proportional to 12,623.80, 18,916.26 and 5,226.88 is: 7,832.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.80 : 18,916.26 = 5,226.88 : x
  2. Step 2: Convert to fraction form
    12,623.80/18,916.26 = 5,226.88/x
  3. Step 3: Cross multiply
    12,623.80x = 18,916.26 × 5,226.88
  4. Step 4: Simplify right side
    12,623.80x = 98,873,021.07
  5. Step 5: Solve for x
    x = 98,873,021.07/12,623.80
  6. Step 6: Final answer
    x = 7,832.27

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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.