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Finding the Fourth Proportional to 13,668.04, 18,866.06 and 8,004.12

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Solution

The fourth proportional to 13,668.04, 18,866.06 and 8,004.12 is: 11,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.04 : 18,866.06 = 8,004.12 : x
  2. Step 2: Convert to fraction form
    13,668.04/18,866.06 = 8,004.12/x
  3. Step 3: Cross multiply
    13,668.04x = 18,866.06 × 8,004.12
  4. Step 4: Simplify right side
    13,668.04x = 151,006,208.17
  5. Step 5: Solve for x
    x = 151,006,208.17/13,668.04
  6. Step 6: Final answer
    x = 11,048.12

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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.