Home / 12,719.60-17,540.84-9,735.52

Finding the Fourth Proportional to 12,719.60, 17,540.84 and 9,735.52

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Solution

The fourth proportional to 12,719.60, 17,540.84 and 9,735.52 is: 13,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.60 : 17,540.84 = 9,735.52 : x
  2. Step 2: Convert to fraction form
    12,719.60/17,540.84 = 9,735.52/x
  3. Step 3: Cross multiply
    12,719.60x = 17,540.84 × 9,735.52
  4. Step 4: Simplify right side
    12,719.60x = 170,769,198.64
  5. Step 5: Solve for x
    x = 170,769,198.64/12,719.60
  6. Step 6: Final answer
    x = 13,425.67

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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.