Home / 18,663.66-28,003.19-7,567.56

Finding the Fourth Proportional to 18,663.66, 28,003.19 and 7,567.56

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Solution

The fourth proportional to 18,663.66, 28,003.19 and 7,567.56 is: 11,354.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.66 : 28,003.19 = 7,567.56 : x
  2. Step 2: Convert to fraction form
    18,663.66/28,003.19 = 7,567.56/x
  3. Step 3: Cross multiply
    18,663.66x = 28,003.19 × 7,567.56
  4. Step 4: Simplify right side
    18,663.66x = 211,915,782.68
  5. Step 5: Solve for x
    x = 211,915,782.68/18,663.66
  6. Step 6: Final answer
    x = 11,354.46

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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.