Home / 14,783.45-20,400.80-8,069.22

Finding the Fourth Proportional to 14,783.45, 20,400.80 and 8,069.22

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Solution

The fourth proportional to 14,783.45, 20,400.80 and 8,069.22 is: 11,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,783.45 : 20,400.80 = 8,069.22 : x
  2. Step 2: Convert to fraction form
    14,783.45/20,400.80 = 8,069.22/x
  3. Step 3: Cross multiply
    14,783.45x = 20,400.80 × 8,069.22
  4. Step 4: Simplify right side
    14,783.45x = 164,618,503.03
  5. Step 5: Solve for x
    x = 164,618,503.03/14,783.45
  6. Step 6: Final answer
    x = 11,135.33

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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.