Home / 13,625.25-20,426.84-4,260.45

Finding the Fourth Proportional to 13,625.25, 20,426.84 and 4,260.45

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Solution

The fourth proportional to 13,625.25, 20,426.84 and 4,260.45 is: 6,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.25 : 20,426.84 = 4,260.45 : x
  2. Step 2: Convert to fraction form
    13,625.25/20,426.84 = 4,260.45/x
  3. Step 3: Cross multiply
    13,625.25x = 20,426.84 × 4,260.45
  4. Step 4: Simplify right side
    13,625.25x = 87,027,509.18
  5. Step 5: Solve for x
    x = 87,027,509.18/13,625.25
  6. Step 6: Final answer
    x = 6,387.22

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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.