Home / 13,504.95-18,654.99-12,247.41

Finding the Fourth Proportional to 13,504.95, 18,654.99 and 12,247.41

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Solution

The fourth proportional to 13,504.95, 18,654.99 and 12,247.41 is: 16,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.95 : 18,654.99 = 12,247.41 : x
  2. Step 2: Convert to fraction form
    13,504.95/18,654.99 = 12,247.41/x
  3. Step 3: Cross multiply
    13,504.95x = 18,654.99 × 12,247.41
  4. Step 4: Simplify right side
    13,504.95x = 228,475,311.08
  5. Step 5: Solve for x
    x = 228,475,311.08/13,504.95
  6. Step 6: Final answer
    x = 16,917.89

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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.