Home / 13,938.44-19,234.98-7,650.68

Finding the Fourth Proportional to 13,938.44, 19,234.98 and 7,650.68

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Solution

The fourth proportional to 13,938.44, 19,234.98 and 7,650.68 is: 10,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.44 : 19,234.98 = 7,650.68 : x
  2. Step 2: Convert to fraction form
    13,938.44/19,234.98 = 7,650.68/x
  3. Step 3: Cross multiply
    13,938.44x = 19,234.98 × 7,650.68
  4. Step 4: Simplify right side
    13,938.44x = 147,160,676.79
  5. Step 5: Solve for x
    x = 147,160,676.79/13,938.44
  6. Step 6: Final answer
    x = 10,557.90

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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.