Home / 9,267.89-12,790.92-5,288.09

Finding the Fourth Proportional to 9,267.89, 12,790.92 and 5,288.09

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Solution

The fourth proportional to 9,267.89, 12,790.92 and 5,288.09 is: 7,298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.89 : 12,790.92 = 5,288.09 : x
  2. Step 2: Convert to fraction form
    9,267.89/12,790.92 = 5,288.09/x
  3. Step 3: Cross multiply
    9,267.89x = 12,790.92 × 5,288.09
  4. Step 4: Simplify right side
    9,267.89x = 67,639,536.14
  5. Step 5: Solve for x
    x = 67,639,536.14/9,267.89
  6. Step 6: Final answer
    x = 7,298.27

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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.