Home / 13,601.12-20,402.40-3,740.18

Finding the Fourth Proportional to 13,601.12, 20,402.40 and 3,740.18

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Solution

The fourth proportional to 13,601.12, 20,402.40 and 3,740.18 is: 5,610.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.12 : 20,402.40 = 3,740.18 : x
  2. Step 2: Convert to fraction form
    13,601.12/20,402.40 = 3,740.18/x
  3. Step 3: Cross multiply
    13,601.12x = 20,402.40 × 3,740.18
  4. Step 4: Simplify right side
    13,601.12x = 76,308,648.43
  5. Step 5: Solve for x
    x = 76,308,648.43/13,601.12
  6. Step 6: Final answer
    x = 5,610.47

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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.