Home / 12,860.08-19,286.78-5,460.73

Finding the Fourth Proportional to 12,860.08, 19,286.78 and 5,460.73

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Solution

The fourth proportional to 12,860.08, 19,286.78 and 5,460.73 is: 8,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.08 : 19,286.78 = 5,460.73 : x
  2. Step 2: Convert to fraction form
    12,860.08/19,286.78 = 5,460.73/x
  3. Step 3: Cross multiply
    12,860.08x = 19,286.78 × 5,460.73
  4. Step 4: Simplify right side
    12,860.08x = 105,319,822.63
  5. Step 5: Solve for x
    x = 105,319,822.63/12,860.08
  6. Step 6: Final answer
    x = 8,189.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.