Home / 14,486.18-19,990.58-8,518.23

Finding the Fourth Proportional to 14,486.18, 19,990.58 and 8,518.23

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Solution

The fourth proportional to 14,486.18, 19,990.58 and 8,518.23 is: 11,754.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,486.18 : 19,990.58 = 8,518.23 : x
  2. Step 2: Convert to fraction form
    14,486.18/19,990.58 = 8,518.23/x
  3. Step 3: Cross multiply
    14,486.18x = 19,990.58 × 8,518.23
  4. Step 4: Simplify right side
    14,486.18x = 170,284,315.68
  5. Step 5: Solve for x
    x = 170,284,315.68/14,486.18
  6. Step 6: Final answer
    x = 11,754.95

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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.