Home / 13,245.96-19,868.34-3,885.60

Finding the Fourth Proportional to 13,245.96, 19,868.34 and 3,885.60

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Solution

The fourth proportional to 13,245.96, 19,868.34 and 3,885.60 is: 5,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.96 : 19,868.34 = 3,885.60 : x
  2. Step 2: Convert to fraction form
    13,245.96/19,868.34 = 3,885.60/x
  3. Step 3: Cross multiply
    13,245.96x = 19,868.34 × 3,885.60
  4. Step 4: Simplify right side
    13,245.96x = 77,200,421.90
  5. Step 5: Solve for x
    x = 77,200,421.90/13,245.96
  6. Step 6: Final answer
    x = 5,828.22

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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.