Home / 13,327.70-19,990.11-7,081.07

Finding the Fourth Proportional to 13,327.70, 19,990.11 and 7,081.07

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Solution

The fourth proportional to 13,327.70, 19,990.11 and 7,081.07 is: 10,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.70 : 19,990.11 = 7,081.07 : x
  2. Step 2: Convert to fraction form
    13,327.70/19,990.11 = 7,081.07/x
  3. Step 3: Cross multiply
    13,327.70x = 19,990.11 × 7,081.07
  4. Step 4: Simplify right side
    13,327.70x = 141,551,268.27
  5. Step 5: Solve for x
    x = 141,551,268.27/13,327.70
  6. Step 6: Final answer
    x = 10,620.84

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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.