Home / 7,977.86-11,009.21-4,440.99

Finding the Fourth Proportional to 7,977.86, 11,009.21 and 4,440.99

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Solution

The fourth proportional to 7,977.86, 11,009.21 and 4,440.99 is: 6,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.86 : 11,009.21 = 4,440.99 : x
  2. Step 2: Convert to fraction form
    7,977.86/11,009.21 = 4,440.99/x
  3. Step 3: Cross multiply
    7,977.86x = 11,009.21 × 4,440.99
  4. Step 4: Simplify right side
    7,977.86x = 48,891,769.31
  5. Step 5: Solve for x
    x = 48,891,769.31/7,977.86
  6. Step 6: Final answer
    x = 6,128.44

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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.