Home / 9,679.24-13,352.80-5,697.80

Finding the Fourth Proportional to 9,679.24, 13,352.80 and 5,697.80

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Solution

The fourth proportional to 9,679.24, 13,352.80 and 5,697.80 is: 7,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.24 : 13,352.80 = 5,697.80 : x
  2. Step 2: Convert to fraction form
    9,679.24/13,352.80 = 5,697.80/x
  3. Step 3: Cross multiply
    9,679.24x = 13,352.80 × 5,697.80
  4. Step 4: Simplify right side
    9,679.24x = 76,081,583.84
  5. Step 5: Solve for x
    x = 76,081,583.84/9,679.24
  6. Step 6: Final answer
    x = 7,860.28

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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.