Home / 13,257.26-18,295.44-7,289.18

Finding the Fourth Proportional to 13,257.26, 18,295.44 and 7,289.18

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Solution

The fourth proportional to 13,257.26, 18,295.44 and 7,289.18 is: 10,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.26 : 18,295.44 = 7,289.18 : x
  2. Step 2: Convert to fraction form
    13,257.26/18,295.44 = 7,289.18/x
  3. Step 3: Cross multiply
    13,257.26x = 18,295.44 × 7,289.18
  4. Step 4: Simplify right side
    13,257.26x = 133,358,755.34
  5. Step 5: Solve for x
    x = 133,358,755.34/13,257.26
  6. Step 6: Final answer
    x = 10,059.30

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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.