Home / 13,749.60-18,983.04-9,450.09

Finding the Fourth Proportional to 13,749.60, 18,983.04 and 9,450.09

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Solution

The fourth proportional to 13,749.60, 18,983.04 and 9,450.09 is: 13,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.60 : 18,983.04 = 9,450.09 : x
  2. Step 2: Convert to fraction form
    13,749.60/18,983.04 = 9,450.09/x
  3. Step 3: Cross multiply
    13,749.60x = 18,983.04 × 9,450.09
  4. Step 4: Simplify right side
    13,749.60x = 179,391,436.47
  5. Step 5: Solve for x
    x = 179,391,436.47/13,749.60
  6. Step 6: Final answer
    x = 13,047.03

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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.