Home / 13,647.69-18,833.58-7,679.34

Finding the Fourth Proportional to 13,647.69, 18,833.58 and 7,679.34

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Solution

The fourth proportional to 13,647.69, 18,833.58 and 7,679.34 is: 10,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.69 : 18,833.58 = 7,679.34 : x
  2. Step 2: Convert to fraction form
    13,647.69/18,833.58 = 7,679.34/x
  3. Step 3: Cross multiply
    13,647.69x = 18,833.58 × 7,679.34
  4. Step 4: Simplify right side
    13,647.69x = 144,629,464.24
  5. Step 5: Solve for x
    x = 144,629,464.24/13,647.69
  6. Step 6: Final answer
    x = 10,597.36

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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.