Home / 13,657.36-20,487.18-3,796.72

Finding the Fourth Proportional to 13,657.36, 20,487.18 and 3,796.72

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Solution

The fourth proportional to 13,657.36, 20,487.18 and 3,796.72 is: 5,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.36 : 20,487.18 = 3,796.72 : x
  2. Step 2: Convert to fraction form
    13,657.36/20,487.18 = 3,796.72/x
  3. Step 3: Cross multiply
    13,657.36x = 20,487.18 × 3,796.72
  4. Step 4: Simplify right side
    13,657.36x = 77,784,142.95
  5. Step 5: Solve for x
    x = 77,784,142.95/13,657.36
  6. Step 6: Final answer
    x = 5,695.40

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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.