Home / 8,860.72-13,262.22-6,520.15

Finding the Fourth Proportional to 8,860.72, 13,262.22 and 6,520.15

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Solution

The fourth proportional to 8,860.72, 13,262.22 and 6,520.15 is: 9,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.72 : 13,262.22 = 6,520.15 : x
  2. Step 2: Convert to fraction form
    8,860.72/13,262.22 = 6,520.15/x
  3. Step 3: Cross multiply
    8,860.72x = 13,262.22 × 6,520.15
  4. Step 4: Simplify right side
    8,860.72x = 86,471,663.73
  5. Step 5: Solve for x
    x = 86,471,663.73/8,860.72
  6. Step 6: Final answer
    x = 9,758.99

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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.