Home / 13,028.31-19,530.18-4,257.09

Finding the Fourth Proportional to 13,028.31, 19,530.18 and 4,257.09

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Solution

The fourth proportional to 13,028.31, 19,530.18 and 4,257.09 is: 6,381.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.31 : 19,530.18 = 4,257.09 : x
  2. Step 2: Convert to fraction form
    13,028.31/19,530.18 = 4,257.09/x
  3. Step 3: Cross multiply
    13,028.31x = 19,530.18 × 4,257.09
  4. Step 4: Simplify right side
    13,028.31x = 83,141,733.98
  5. Step 5: Solve for x
    x = 83,141,733.98/13,028.31
  6. Step 6: Final answer
    x = 6,381.62

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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.