Home / 7,984.20-11,017.68-4,447.32

Finding the Fourth Proportional to 7,984.20, 11,017.68 and 4,447.32

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Solution

The fourth proportional to 7,984.20, 11,017.68 and 4,447.32 is: 6,137.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.20 : 11,017.68 = 4,447.32 : x
  2. Step 2: Convert to fraction form
    7,984.20/11,017.68 = 4,447.32/x
  3. Step 3: Cross multiply
    7,984.20x = 11,017.68 × 4,447.32
  4. Step 4: Simplify right side
    7,984.20x = 48,999,148.62
  5. Step 5: Solve for x
    x = 48,999,148.62/7,984.20
  6. Step 6: Final answer
    x = 6,137.01

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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.