Home / 12,623.85-18,937.60-3,859.45

Finding the Fourth Proportional to 12,623.85, 18,937.60 and 3,859.45

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Solution

The fourth proportional to 12,623.85, 18,937.60 and 3,859.45 is: 5,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.85 : 18,937.60 = 3,859.45 : x
  2. Step 2: Convert to fraction form
    12,623.85/18,937.60 = 3,859.45/x
  3. Step 3: Cross multiply
    12,623.85x = 18,937.60 × 3,859.45
  4. Step 4: Simplify right side
    12,623.85x = 73,088,663.33
  5. Step 5: Solve for x
    x = 73,088,663.33/12,623.85
  6. Step 6: Final answer
    x = 5,789.73

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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.