Home / 15,842.37-21,863.16-8,768.79

Finding the Fourth Proportional to 15,842.37, 21,863.16 and 8,768.79

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Solution

The fourth proportional to 15,842.37, 21,863.16 and 8,768.79 is: 12,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842.37 : 21,863.16 = 8,768.79 : x
  2. Step 2: Convert to fraction form
    15,842.37/21,863.16 = 8,768.79/x
  3. Step 3: Cross multiply
    15,842.37x = 21,863.16 × 8,768.79
  4. Step 4: Simplify right side
    15,842.37x = 191,713,458.78
  5. Step 5: Solve for x
    x = 191,713,458.78/15,842.37
  6. Step 6: Final answer
    x = 12,101.31

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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.