Home / 42,783.97-64,171.04-11,197.09

Finding the Fourth Proportional to 42,783.97, 64,171.04 and 11,197.09

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Solution

The fourth proportional to 42,783.97, 64,171.04 and 11,197.09 is: 16,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,783.97 : 64,171.04 = 11,197.09 : x
  2. Step 2: Convert to fraction form
    42,783.97/64,171.04 = 11,197.09/x
  3. Step 3: Cross multiply
    42,783.97x = 64,171.04 × 11,197.09
  4. Step 4: Simplify right side
    42,783.97x = 718,528,910.27
  5. Step 5: Solve for x
    x = 718,528,910.27/42,783.97
  6. Step 6: Final answer
    x = 16,794.35

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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.