Home / 9,708.20-13,394.16-5,728.57

Finding the Fourth Proportional to 9,708.20, 13,394.16 and 5,728.57

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Solution

The fourth proportional to 9,708.20, 13,394.16 and 5,728.57 is: 7,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,708.20 : 13,394.16 = 5,728.57 : x
  2. Step 2: Convert to fraction form
    9,708.20/13,394.16 = 5,728.57/x
  3. Step 3: Cross multiply
    9,708.20x = 13,394.16 × 5,728.57
  4. Step 4: Simplify right side
    9,708.20x = 76,729,425.01
  5. Step 5: Solve for x
    x = 76,729,425.01/9,708.20
  6. Step 6: Final answer
    x = 7,903.57

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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.