Home / 12,900.82-19,353.44-4,015.50

Finding the Fourth Proportional to 12,900.82, 19,353.44 and 4,015.50

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Solution

The fourth proportional to 12,900.82, 19,353.44 and 4,015.50 is: 6,023.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.82 : 19,353.44 = 4,015.50 : x
  2. Step 2: Convert to fraction form
    12,900.82/19,353.44 = 4,015.50/x
  3. Step 3: Cross multiply
    12,900.82x = 19,353.44 × 4,015.50
  4. Step 4: Simplify right side
    12,900.82x = 77,713,852.27
  5. Step 5: Solve for x
    x = 77,713,852.27/12,900.82
  6. Step 6: Final answer
    x = 6,023.95

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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.