Home / 9,157.87-13,736.55-2,918.34

Finding the Fourth Proportional to 9,157.87, 13,736.55 and 2,918.34

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Solution

The fourth proportional to 9,157.87, 13,736.55 and 2,918.34 is: 4,377.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.87 : 13,736.55 = 2,918.34 : x
  2. Step 2: Convert to fraction form
    9,157.87/13,736.55 = 2,918.34/x
  3. Step 3: Cross multiply
    9,157.87x = 13,736.55 × 2,918.34
  4. Step 4: Simplify right side
    9,157.87x = 40,087,923.33
  5. Step 5: Solve for x
    x = 40,087,923.33/9,157.87
  6. Step 6: Final answer
    x = 4,377.43

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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.