Home / 13,238.20-18,268.84-7,270.00

Finding the Fourth Proportional to 13,238.20, 18,268.84 and 7,270.00

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Solution

The fourth proportional to 13,238.20, 18,268.84 and 7,270.00 is: 10,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.20 : 18,268.84 = 7,270.00 : x
  2. Step 2: Convert to fraction form
    13,238.20/18,268.84 = 7,270.00/x
  3. Step 3: Cross multiply
    13,238.20x = 18,268.84 × 7,270.00
  4. Step 4: Simplify right side
    13,238.20x = 132,814,440.37
  5. Step 5: Solve for x
    x = 132,814,440.37/13,238.20
  6. Step 6: Final answer
    x = 10,032.67

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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.