Home / 14,861.35-20,485.68-11,078.75

Finding the Fourth Proportional to 14,861.35, 20,485.68 and 11,078.75

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Solution

The fourth proportional to 14,861.35, 20,485.68 and 11,078.75 is: 15,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861.35 : 20,485.68 = 11,078.75 : x
  2. Step 2: Convert to fraction form
    14,861.35/20,485.68 = 11,078.75/x
  3. Step 3: Cross multiply
    14,861.35x = 20,485.68 × 11,078.75
  4. Step 4: Simplify right side
    14,861.35x = 226,955,727.30
  5. Step 5: Solve for x
    x = 226,955,727.30/14,861.35
  6. Step 6: Final answer
    x = 15,271.54

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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.