Home / 13,994.08-20,993.20-8,724.80

Finding the Fourth Proportional to 13,994.08, 20,993.20 and 8,724.80

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Solution

The fourth proportional to 13,994.08, 20,993.20 and 8,724.80 is: 13,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.08 : 20,993.20 = 8,724.80 : x
  2. Step 2: Convert to fraction form
    13,994.08/20,993.20 = 8,724.80/x
  3. Step 3: Cross multiply
    13,994.08x = 20,993.20 × 8,724.80
  4. Step 4: Simplify right side
    13,994.08x = 183,161,471.36
  5. Step 5: Solve for x
    x = 183,161,471.36/13,994.08
  6. Step 6: Final answer
    x = 13,088.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.