Home / 13,845.75-20,768.54-3,457.50

Finding the Fourth Proportional to 13,845.75, 20,768.54 and 3,457.50

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Solution

The fourth proportional to 13,845.75, 20,768.54 and 3,457.50 is: 5,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.75 : 20,768.54 = 3,457.50 : x
  2. Step 2: Convert to fraction form
    13,845.75/20,768.54 = 3,457.50/x
  3. Step 3: Cross multiply
    13,845.75x = 20,768.54 × 3,457.50
  4. Step 4: Simplify right side
    13,845.75x = 71,807,209.76
  5. Step 5: Solve for x
    x = 71,807,209.76/13,845.75
  6. Step 6: Final answer
    x = 5,186.23

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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.