Home / 14,504.18-20,015.78-8,216.55

Finding the Fourth Proportional to 14,504.18, 20,015.78 and 8,216.55

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Solution

The fourth proportional to 14,504.18, 20,015.78 and 8,216.55 is: 11,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.18 : 20,015.78 = 8,216.55 : x
  2. Step 2: Convert to fraction form
    14,504.18/20,015.78 = 8,216.55/x
  3. Step 3: Cross multiply
    14,504.18x = 20,015.78 × 8,216.55
  4. Step 4: Simplify right side
    14,504.18x = 164,460,616.08
  5. Step 5: Solve for x
    x = 164,460,616.08/14,504.18
  6. Step 6: Final answer
    x = 11,338.85

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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.