Home / 13,623.79-18,811.33-10,982.99

Finding the Fourth Proportional to 13,623.79, 18,811.33 and 10,982.99

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Solution

The fourth proportional to 13,623.79, 18,811.33 and 10,982.99 is: 15,164.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.79 : 18,811.33 = 10,982.99 : x
  2. Step 2: Convert to fraction form
    13,623.79/18,811.33 = 10,982.99/x
  3. Step 3: Cross multiply
    13,623.79x = 18,811.33 × 10,982.99
  4. Step 4: Simplify right side
    13,623.79x = 206,604,649.28
  5. Step 5: Solve for x
    x = 206,604,649.28/13,623.79
  6. Step 6: Final answer
    x = 15,164.99

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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.