Home / 18,859.44-28,292.80-7,171.75

Finding the Fourth Proportional to 18,859.44, 28,292.80 and 7,171.75

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Solution

The fourth proportional to 18,859.44, 28,292.80 and 7,171.75 is: 10,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.44 : 28,292.80 = 7,171.75 : x
  2. Step 2: Convert to fraction form
    18,859.44/28,292.80 = 7,171.75/x
  3. Step 3: Cross multiply
    18,859.44x = 28,292.80 × 7,171.75
  4. Step 4: Simplify right side
    18,859.44x = 202,908,888.40
  5. Step 5: Solve for x
    x = 202,908,888.40/18,859.44
  6. Step 6: Final answer
    x = 10,759.01

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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.