Home / 13,636.03-20,454.05-4,276.78

Finding the Fourth Proportional to 13,636.03, 20,454.05 and 4,276.78

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Solution

The fourth proportional to 13,636.03, 20,454.05 and 4,276.78 is: 6,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.03 : 20,454.05 = 4,276.78 : x
  2. Step 2: Convert to fraction form
    13,636.03/20,454.05 = 4,276.78/x
  3. Step 3: Cross multiply
    13,636.03x = 20,454.05 × 4,276.78
  4. Step 4: Simplify right side
    13,636.03x = 87,477,399.44
  5. Step 5: Solve for x
    x = 87,477,399.44/13,636.03
  6. Step 6: Final answer
    x = 6,415.17

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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.