Home / 9,105.20-13,659.75-5,158.33

Finding the Fourth Proportional to 9,105.20, 13,659.75 and 5,158.33

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Solution

The fourth proportional to 9,105.20, 13,659.75 and 5,158.33 is: 7,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,105.20 : 13,659.75 = 5,158.33 : x
  2. Step 2: Convert to fraction form
    9,105.20/13,659.75 = 5,158.33/x
  3. Step 3: Cross multiply
    9,105.20x = 13,659.75 × 5,158.33
  4. Step 4: Simplify right side
    9,105.20x = 70,461,464.07
  5. Step 5: Solve for x
    x = 70,461,464.07/9,105.20
  6. Step 6: Final answer
    x = 7,738.60

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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.