Home / 7,119.51-9,823.80-4,286.67

Finding the Fourth Proportional to 7,119.51, 9,823.80 and 4,286.67

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Solution

The fourth proportional to 7,119.51, 9,823.80 and 4,286.67 is: 5,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.51 : 9,823.80 = 4,286.67 : x
  2. Step 2: Convert to fraction form
    7,119.51/9,823.80 = 4,286.67/x
  3. Step 3: Cross multiply
    7,119.51x = 9,823.80 × 4,286.67
  4. Step 4: Simplify right side
    7,119.51x = 42,111,388.75
  5. Step 5: Solve for x
    x = 42,111,388.75/7,119.51
  6. Step 6: Final answer
    x = 5,914.93

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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.