Home / 13,758.89-20,632.04-4,397.09

Finding the Fourth Proportional to 13,758.89, 20,632.04 and 4,397.09

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Solution

The fourth proportional to 13,758.89, 20,632.04 and 4,397.09 is: 6,593.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.89 : 20,632.04 = 4,397.09 : x
  2. Step 2: Convert to fraction form
    13,758.89/20,632.04 = 4,397.09/x
  3. Step 3: Cross multiply
    13,758.89x = 20,632.04 × 4,397.09
  4. Step 4: Simplify right side
    13,758.89x = 90,720,914.78
  5. Step 5: Solve for x
    x = 90,720,914.78/13,758.89
  6. Step 6: Final answer
    x = 6,593.62

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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.