Home / 7,986.08-11,019.42-4,629.32

Finding the Fourth Proportional to 7,986.08, 11,019.42 and 4,629.32

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Solution

The fourth proportional to 7,986.08, 11,019.42 and 4,629.32 is: 6,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.08 : 11,019.42 = 4,629.32 : x
  2. Step 2: Convert to fraction form
    7,986.08/11,019.42 = 4,629.32/x
  3. Step 3: Cross multiply
    7,986.08x = 11,019.42 × 4,629.32
  4. Step 4: Simplify right side
    7,986.08x = 51,012,421.39
  5. Step 5: Solve for x
    x = 51,012,421.39/7,986.08
  6. Step 6: Final answer
    x = 6,387.67

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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.