Home / 9,267.21-12,788.64-5,288.31

Finding the Fourth Proportional to 9,267.21, 12,788.64 and 5,288.31

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Solution

The fourth proportional to 9,267.21, 12,788.64 and 5,288.31 is: 7,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.21 : 12,788.64 = 5,288.31 : x
  2. Step 2: Convert to fraction form
    9,267.21/12,788.64 = 5,288.31/x
  3. Step 3: Cross multiply
    9,267.21x = 12,788.64 × 5,288.31
  4. Step 4: Simplify right side
    9,267.21x = 67,630,292.80
  5. Step 5: Solve for x
    x = 67,630,292.80/9,267.21
  6. Step 6: Final answer
    x = 7,297.81

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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.