Home / 9,717.20-13,409.34-5,739.60

Finding the Fourth Proportional to 9,717.20, 13,409.34 and 5,739.60

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Solution

The fourth proportional to 9,717.20, 13,409.34 and 5,739.60 is: 7,920.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,717.20 : 13,409.34 = 5,739.60 : x
  2. Step 2: Convert to fraction form
    9,717.20/13,409.34 = 5,739.60/x
  3. Step 3: Cross multiply
    9,717.20x = 13,409.34 × 5,739.60
  4. Step 4: Simplify right side
    9,717.20x = 76,964,247.86
  5. Step 5: Solve for x
    x = 76,964,247.86/9,717.20
  6. Step 6: Final answer
    x = 7,920.41

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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.