Home / 13,383.45-18,470.30-7,416.99

Finding the Fourth Proportional to 13,383.45, 18,470.30 and 7,416.99

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Solution

The fourth proportional to 13,383.45, 18,470.30 and 7,416.99 is: 10,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.45 : 18,470.30 = 7,416.99 : x
  2. Step 2: Convert to fraction form
    13,383.45/18,470.30 = 7,416.99/x
  3. Step 3: Cross multiply
    13,383.45x = 18,470.30 × 7,416.99
  4. Step 4: Simplify right side
    13,383.45x = 136,993,993.31
  5. Step 5: Solve for x
    x = 136,993,993.31/13,383.45
  6. Step 6: Final answer
    x = 10,236.07

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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.