Home / 8,277.14-11,421.77-4,920.77

Finding the Fourth Proportional to 8,277.14, 11,421.77 and 4,920.77

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Solution

The fourth proportional to 8,277.14, 11,421.77 and 4,920.77 is: 6,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,277.14 : 11,421.77 = 4,920.77 : x
  2. Step 2: Convert to fraction form
    8,277.14/11,421.77 = 4,920.77/x
  3. Step 3: Cross multiply
    8,277.14x = 11,421.77 × 4,920.77
  4. Step 4: Simplify right side
    8,277.14x = 56,203,907.11
  5. Step 5: Solve for x
    x = 56,203,907.11/8,277.14
  6. Step 6: Final answer
    x = 6,790.25

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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.