Home / 18,673.06-28,013.75-8,144.79

Finding the Fourth Proportional to 18,673.06, 28,013.75 and 8,144.79

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Solution

The fourth proportional to 18,673.06, 28,013.75 and 8,144.79 is: 12,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.06 : 28,013.75 = 8,144.79 : x
  2. Step 2: Convert to fraction form
    18,673.06/28,013.75 = 8,144.79/x
  3. Step 3: Cross multiply
    18,673.06x = 28,013.75 × 8,144.79
  4. Step 4: Simplify right side
    18,673.06x = 228,166,110.86
  5. Step 5: Solve for x
    x = 228,166,110.86/18,673.06
  6. Step 6: Final answer
    x = 12,219.00

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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.