Home / 7,971.20-11,000.28-4,434.44

Finding the Fourth Proportional to 7,971.20, 11,000.28 and 4,434.44

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Solution

The fourth proportional to 7,971.20, 11,000.28 and 4,434.44 is: 6,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.20 : 11,000.28 = 4,434.44 : x
  2. Step 2: Convert to fraction form
    7,971.20/11,000.28 = 4,434.44/x
  3. Step 3: Cross multiply
    7,971.20x = 11,000.28 × 4,434.44
  4. Step 4: Simplify right side
    7,971.20x = 48,780,081.64
  5. Step 5: Solve for x
    x = 48,780,081.64/7,971.20
  6. Step 6: Final answer
    x = 6,119.54

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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.