Home / 9,287.19-13,918.19-5,120.96

Finding the Fourth Proportional to 9,287.19, 13,918.19 and 5,120.96

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Solution

The fourth proportional to 9,287.19, 13,918.19 and 5,120.96 is: 7,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.19 : 13,918.19 = 5,120.96 : x
  2. Step 2: Convert to fraction form
    9,287.19/13,918.19 = 5,120.96/x
  3. Step 3: Cross multiply
    9,287.19x = 13,918.19 × 5,120.96
  4. Step 4: Simplify right side
    9,287.19x = 71,274,399.07
  5. Step 5: Solve for x
    x = 71,274,399.07/9,287.19
  6. Step 6: Final answer
    x = 7,674.48

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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.