Home / 13,938.68-19,226.62-8,269.41

Finding the Fourth Proportional to 13,938.68, 19,226.62 and 8,269.41

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Solution

The fourth proportional to 13,938.68, 19,226.62 and 8,269.41 is: 11,406.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.68 : 19,226.62 = 8,269.41 : x
  2. Step 2: Convert to fraction form
    13,938.68/19,226.62 = 8,269.41/x
  3. Step 3: Cross multiply
    13,938.68x = 19,226.62 × 8,269.41
  4. Step 4: Simplify right side
    13,938.68x = 158,992,776.30
  5. Step 5: Solve for x
    x = 158,992,776.30/13,938.68
  6. Step 6: Final answer
    x = 11,406.59

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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.