Home / 13,049.96-18,009.07-7,081.67

Finding the Fourth Proportional to 13,049.96, 18,009.07 and 7,081.67

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Solution

The fourth proportional to 13,049.96, 18,009.07 and 7,081.67 is: 9,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.96 : 18,009.07 = 7,081.67 : x
  2. Step 2: Convert to fraction form
    13,049.96/18,009.07 = 7,081.67/x
  3. Step 3: Cross multiply
    13,049.96x = 18,009.07 × 7,081.67
  4. Step 4: Simplify right side
    13,049.96x = 127,534,318.07
  5. Step 5: Solve for x
    x = 127,534,318.07/13,049.96
  6. Step 6: Final answer
    x = 9,772.78

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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.