Home / 14,199.99-21,276.44-8,636.51

Finding the Fourth Proportional to 14,199.99, 21,276.44 and 8,636.51

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Solution

The fourth proportional to 14,199.99, 21,276.44 and 8,636.51 is: 12,940.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,199.99 : 21,276.44 = 8,636.51 : x
  2. Step 2: Convert to fraction form
    14,199.99/21,276.44 = 8,636.51/x
  3. Step 3: Cross multiply
    14,199.99x = 21,276.44 × 8,636.51
  4. Step 4: Simplify right side
    14,199.99x = 183,754,109.54
  5. Step 5: Solve for x
    x = 183,754,109.54/14,199.99
  6. Step 6: Final answer
    x = 12,940.44

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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.