Home / 12,225.35-18,337.65-3,905.85

Finding the Fourth Proportional to 12,225.35, 18,337.65 and 3,905.85

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Solution

The fourth proportional to 12,225.35, 18,337.65 and 3,905.85 is: 5,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.35 : 18,337.65 = 3,905.85 : x
  2. Step 2: Convert to fraction form
    12,225.35/18,337.65 = 3,905.85/x
  3. Step 3: Cross multiply
    12,225.35x = 18,337.65 × 3,905.85
  4. Step 4: Simplify right side
    12,225.35x = 71,624,110.25
  5. Step 5: Solve for x
    x = 71,624,110.25/12,225.35
  6. Step 6: Final answer
    x = 5,858.66

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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.