Home / 18,107.28-24,991.56-11,808.72

Finding the Fourth Proportional to 18,107.28, 24,991.56 and 11,808.72

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Solution

The fourth proportional to 18,107.28, 24,991.56 and 11,808.72 is: 16,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.28 : 24,991.56 = 11,808.72 : x
  2. Step 2: Convert to fraction form
    18,107.28/24,991.56 = 11,808.72/x
  3. Step 3: Cross multiply
    18,107.28x = 24,991.56 × 11,808.72
  4. Step 4: Simplify right side
    18,107.28x = 295,118,334.40
  5. Step 5: Solve for x
    x = 295,118,334.40/18,107.28
  6. Step 6: Final answer
    x = 16,298.33

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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.