Home / 7,977.96-11,009.52-4,440.96

Finding the Fourth Proportional to 7,977.96, 11,009.52 and 4,440.96

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Solution

The fourth proportional to 7,977.96, 11,009.52 and 4,440.96 is: 6,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.96 : 11,009.52 = 4,440.96 : x
  2. Step 2: Convert to fraction form
    7,977.96/11,009.52 = 4,440.96/x
  3. Step 3: Cross multiply
    7,977.96x = 11,009.52 × 4,440.96
  4. Step 4: Simplify right side
    7,977.96x = 48,892,837.94
  5. Step 5: Solve for x
    x = 48,892,837.94/7,977.96
  6. Step 6: Final answer
    x = 6,128.49

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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.