Home / 10,958.40-15,122.88-6,708.96

Finding the Fourth Proportional to 10,958.40, 15,122.88 and 6,708.96

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Solution

The fourth proportional to 10,958.40, 15,122.88 and 6,708.96 is: 9,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.40 : 15,122.88 = 6,708.96 : x
  2. Step 2: Convert to fraction form
    10,958.40/15,122.88 = 6,708.96/x
  3. Step 3: Cross multiply
    10,958.40x = 15,122.88 × 6,708.96
  4. Step 4: Simplify right side
    10,958.40x = 101,458,797.00
  5. Step 5: Solve for x
    x = 101,458,797.00/10,958.40
  6. Step 6: Final answer
    x = 9,258.54

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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.