Home / 7,971.82-10,999.87-4,435.02

Finding the Fourth Proportional to 7,971.82, 10,999.87 and 4,435.02

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Solution

The fourth proportional to 7,971.82, 10,999.87 and 4,435.02 is: 6,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.82 : 10,999.87 = 4,435.02 : x
  2. Step 2: Convert to fraction form
    7,971.82/10,999.87 = 4,435.02/x
  3. Step 3: Cross multiply
    7,971.82x = 10,999.87 × 4,435.02
  4. Step 4: Simplify right side
    7,971.82x = 48,784,643.45
  5. Step 5: Solve for x
    x = 48,784,643.45/7,971.82
  6. Step 6: Final answer
    x = 6,119.64

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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.