Home / 13,856.51-20,784.62-3,468.26

Finding the Fourth Proportional to 13,856.51, 20,784.62 and 3,468.26

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Solution

The fourth proportional to 13,856.51, 20,784.62 and 3,468.26 is: 5,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.51 : 20,784.62 = 3,468.26 : x
  2. Step 2: Convert to fraction form
    13,856.51/20,784.62 = 3,468.26/x
  3. Step 3: Cross multiply
    13,856.51x = 20,784.62 × 3,468.26
  4. Step 4: Simplify right side
    13,856.51x = 72,086,344.90
  5. Step 5: Solve for x
    x = 72,086,344.90/13,856.51
  6. Step 6: Final answer
    x = 5,202.35

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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.