Home / 13,257.63-18,295.71-7,289.25

Finding the Fourth Proportional to 13,257.63, 18,295.71 and 7,289.25

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Solution

The fourth proportional to 13,257.63, 18,295.71 and 7,289.25 is: 10,059.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.63 : 18,295.71 = 7,289.25 : x
  2. Step 2: Convert to fraction form
    13,257.63/18,295.71 = 7,289.25/x
  3. Step 3: Cross multiply
    13,257.63x = 18,295.71 × 7,289.25
  4. Step 4: Simplify right side
    13,257.63x = 133,362,004.12
  5. Step 5: Solve for x
    x = 133,362,004.12/13,257.63
  6. Step 6: Final answer
    x = 10,059.26

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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.