Home / 8,521.44-12,782.07-2,281.26

Finding the Fourth Proportional to 8,521.44, 12,782.07 and 2,281.26

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Solution

The fourth proportional to 8,521.44, 12,782.07 and 2,281.26 is: 3,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.44 : 12,782.07 = 2,281.26 : x
  2. Step 2: Convert to fraction form
    8,521.44/12,782.07 = 2,281.26/x
  3. Step 3: Cross multiply
    8,521.44x = 12,782.07 × 2,281.26
  4. Step 4: Simplify right side
    8,521.44x = 29,159,272.94
  5. Step 5: Solve for x
    x = 29,159,272.94/8,521.44
  6. Step 6: Final answer
    x = 3,421.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.