Home / 15,809.27-21,816.08-8,735.54

Finding the Fourth Proportional to 15,809.27, 21,816.08 and 8,735.54

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Solution

The fourth proportional to 15,809.27, 21,816.08 and 8,735.54 is: 12,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809.27 : 21,816.08 = 8,735.54 : x
  2. Step 2: Convert to fraction form
    15,809.27/21,816.08 = 8,735.54/x
  3. Step 3: Cross multiply
    15,809.27x = 21,816.08 × 8,735.54
  4. Step 4: Simplify right side
    15,809.27x = 190,575,086.73
  5. Step 5: Solve for x
    x = 190,575,086.73/15,809.27
  6. Step 6: Final answer
    x = 12,054.65

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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.