Home / 13,760.43-20,636.75-5,324.99

Finding the Fourth Proportional to 13,760.43, 20,636.75 and 5,324.99

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Solution

The fourth proportional to 13,760.43, 20,636.75 and 5,324.99 is: 7,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.43 : 20,636.75 = 5,324.99 : x
  2. Step 2: Convert to fraction form
    13,760.43/20,636.75 = 5,324.99/x
  3. Step 3: Cross multiply
    13,760.43x = 20,636.75 × 5,324.99
  4. Step 4: Simplify right side
    13,760.43x = 109,890,487.38
  5. Step 5: Solve for x
    x = 109,890,487.38/13,760.43
  6. Step 6: Final answer
    x = 7,985.98

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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.