Home / 18,853.23-28,279.83-4,813.26

Finding the Fourth Proportional to 18,853.23, 28,279.83 and 4,813.26

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Solution

The fourth proportional to 18,853.23, 28,279.83 and 4,813.26 is: 7,219.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.23 : 28,279.83 = 4,813.26 : x
  2. Step 2: Convert to fraction form
    18,853.23/28,279.83 = 4,813.26/x
  3. Step 3: Cross multiply
    18,853.23x = 28,279.83 × 4,813.26
  4. Step 4: Simplify right side
    18,853.23x = 136,118,174.55
  5. Step 5: Solve for x
    x = 136,118,174.55/18,853.23
  6. Step 6: Final answer
    x = 7,219.89

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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.