Home / 12,223.85-18,335.40-3,904.35

Finding the Fourth Proportional to 12,223.85, 18,335.40 and 3,904.35

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Solution

The fourth proportional to 12,223.85, 18,335.40 and 3,904.35 is: 5,856.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.85 : 18,335.40 = 3,904.35 : x
  2. Step 2: Convert to fraction form
    12,223.85/18,335.40 = 3,904.35/x
  3. Step 3: Cross multiply
    12,223.85x = 18,335.40 × 3,904.35
  4. Step 4: Simplify right side
    12,223.85x = 71,587,818.99
  5. Step 5: Solve for x
    x = 71,587,818.99/12,223.85
  6. Step 6: Final answer
    x = 5,856.41

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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.