Home / 13,938.91-19,234.99-8,273.90

Finding the Fourth Proportional to 13,938.91, 19,234.99 and 8,273.90

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Solution

The fourth proportional to 13,938.91, 19,234.99 and 8,273.90 is: 11,417.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.91 : 19,234.99 = 8,273.90 : x
  2. Step 2: Convert to fraction form
    13,938.91/19,234.99 = 8,273.90/x
  3. Step 3: Cross multiply
    13,938.91x = 19,234.99 × 8,273.90
  4. Step 4: Simplify right side
    13,938.91x = 159,148,383.76
  5. Step 5: Solve for x
    x = 159,148,383.76/13,938.91
  6. Step 6: Final answer
    x = 11,417.56

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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.