Home / 14,604.28-20,152.74-8,636.20

Finding the Fourth Proportional to 14,604.28, 20,152.74 and 8,636.20

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Solution

The fourth proportional to 14,604.28, 20,152.74 and 8,636.20 is: 11,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,604.28 : 20,152.74 = 8,636.20 : x
  2. Step 2: Convert to fraction form
    14,604.28/20,152.74 = 8,636.20/x
  3. Step 3: Cross multiply
    14,604.28x = 20,152.74 × 8,636.20
  4. Step 4: Simplify right side
    14,604.28x = 174,043,093.19
  5. Step 5: Solve for x
    x = 174,043,093.19/14,604.28
  6. Step 6: Final answer
    x = 11,917.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.