Home / 18,743.08-28,092.66-7,642.84

Finding the Fourth Proportional to 18,743.08, 28,092.66 and 7,642.84

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Solution

The fourth proportional to 18,743.08, 28,092.66 and 7,642.84 is: 11,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.08 : 28,092.66 = 7,642.84 : x
  2. Step 2: Convert to fraction form
    18,743.08/28,092.66 = 7,642.84/x
  3. Step 3: Cross multiply
    18,743.08x = 28,092.66 × 7,642.84
  4. Step 4: Simplify right side
    18,743.08x = 214,707,705.55
  5. Step 5: Solve for x
    x = 214,707,705.55/18,743.08
  6. Step 6: Final answer
    x = 11,455.31

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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.