Home / 15,657.97-21,608.88-9,288.33

Finding the Fourth Proportional to 15,657.97, 21,608.88 and 9,288.33

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Solution

The fourth proportional to 15,657.97, 21,608.88 and 9,288.33 is: 12,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.97 : 21,608.88 = 9,288.33 : x
  2. Step 2: Convert to fraction form
    15,657.97/21,608.88 = 9,288.33/x
  3. Step 3: Cross multiply
    15,657.97x = 21,608.88 × 9,288.33
  4. Step 4: Simplify right side
    15,657.97x = 200,710,361.93
  5. Step 5: Solve for x
    x = 200,710,361.93/15,657.97
  6. Step 6: Final answer
    x = 12,818.42

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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.