Home / 15,238.73-21,027.53-9,189.28

Finding the Fourth Proportional to 15,238.73, 21,027.53 and 9,189.28

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Solution

The fourth proportional to 15,238.73, 21,027.53 and 9,189.28 is: 12,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.73 : 21,027.53 = 9,189.28 : x
  2. Step 2: Convert to fraction form
    15,238.73/21,027.53 = 9,189.28/x
  3. Step 3: Cross multiply
    15,238.73x = 21,027.53 × 9,189.28
  4. Step 4: Simplify right side
    15,238.73x = 193,227,910.14
  5. Step 5: Solve for x
    x = 193,227,910.14/15,238.73
  6. Step 6: Final answer
    x = 12,680.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.