Home / 12,519.74-17,288.94-8,051.25

Finding the Fourth Proportional to 12,519.74, 17,288.94 and 8,051.25

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Solution

The fourth proportional to 12,519.74, 17,288.94 and 8,051.25 is: 11,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.74 : 17,288.94 = 8,051.25 : x
  2. Step 2: Convert to fraction form
    12,519.74/17,288.94 = 8,051.25/x
  3. Step 3: Cross multiply
    12,519.74x = 17,288.94 × 8,051.25
  4. Step 4: Simplify right side
    12,519.74x = 139,197,491.73
  5. Step 5: Solve for x
    x = 139,197,491.73/12,519.74
  6. Step 6: Final answer
    x = 11,118.25

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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.