Home / 13,765.23-20,647.76-3,904.51

Finding the Fourth Proportional to 13,765.23, 20,647.76 and 3,904.51

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Solution

The fourth proportional to 13,765.23, 20,647.76 and 3,904.51 is: 5,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.23 : 20,647.76 = 3,904.51 : x
  2. Step 2: Convert to fraction form
    13,765.23/20,647.76 = 3,904.51/x
  3. Step 3: Cross multiply
    13,765.23x = 20,647.76 × 3,904.51
  4. Step 4: Simplify right side
    13,765.23x = 80,619,385.40
  5. Step 5: Solve for x
    x = 80,619,385.40/13,765.23
  6. Step 6: Final answer
    x = 5,856.74

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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.