Home / 13,257.62-19,868.79-7,016.30

Finding the Fourth Proportional to 13,257.62, 19,868.79 and 7,016.30

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Solution

The fourth proportional to 13,257.62, 19,868.79 and 7,016.30 is: 10,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.62 : 19,868.79 = 7,016.30 : x
  2. Step 2: Convert to fraction form
    13,257.62/19,868.79 = 7,016.30/x
  3. Step 3: Cross multiply
    13,257.62x = 19,868.79 × 7,016.30
  4. Step 4: Simplify right side
    13,257.62x = 139,405,391.28
  5. Step 5: Solve for x
    x = 139,405,391.28/13,257.62
  6. Step 6: Final answer
    x = 10,515.11

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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.