Home / 18,945.70-28,416.93-6,466.03

Finding the Fourth Proportional to 18,945.70, 28,416.93 and 6,466.03

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Solution

The fourth proportional to 18,945.70, 28,416.93 and 6,466.03 is: 9,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.70 : 28,416.93 = 6,466.03 : x
  2. Step 2: Convert to fraction form
    18,945.70/28,416.93 = 6,466.03/x
  3. Step 3: Cross multiply
    18,945.70x = 28,416.93 × 6,466.03
  4. Step 4: Simplify right side
    18,945.70x = 183,744,626.60
  5. Step 5: Solve for x
    x = 183,744,626.60/18,945.70
  6. Step 6: Final answer
    x = 9,698.49

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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.