Home / 13,623.68-18,800.07-7,958.95

Finding the Fourth Proportional to 13,623.68, 18,800.07 and 7,958.95

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Solution

The fourth proportional to 13,623.68, 18,800.07 and 7,958.95 is: 10,983.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.68 : 18,800.07 = 7,958.95 : x
  2. Step 2: Convert to fraction form
    13,623.68/18,800.07 = 7,958.95/x
  3. Step 3: Cross multiply
    13,623.68x = 18,800.07 × 7,958.95
  4. Step 4: Simplify right side
    13,623.68x = 149,628,817.13
  5. Step 5: Solve for x
    x = 149,628,817.13/13,623.68
  6. Step 6: Final answer
    x = 10,983.00

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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.