Home / 13,748.48-20,622.80-4,389.49

Finding the Fourth Proportional to 13,748.48, 20,622.80 and 4,389.49

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Solution

The fourth proportional to 13,748.48, 20,622.80 and 4,389.49 is: 6,584.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.48 : 20,622.80 = 4,389.49 : x
  2. Step 2: Convert to fraction form
    13,748.48/20,622.80 = 4,389.49/x
  3. Step 3: Cross multiply
    13,748.48x = 20,622.80 × 4,389.49
  4. Step 4: Simplify right side
    13,748.48x = 90,523,611.12
  5. Step 5: Solve for x
    x = 90,523,611.12/13,748.48
  6. Step 6: Final answer
    x = 6,584.26

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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.