Home / 13,668.14-20,480.65-9,953.28

Finding the Fourth Proportional to 13,668.14, 20,480.65 and 9,953.28

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Solution

The fourth proportional to 13,668.14, 20,480.65 and 9,953.28 is: 14,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.14 : 20,480.65 = 9,953.28 : x
  2. Step 2: Convert to fraction form
    13,668.14/20,480.65 = 9,953.28/x
  3. Step 3: Cross multiply
    13,668.14x = 20,480.65 × 9,953.28
  4. Step 4: Simplify right side
    13,668.14x = 203,849,619.15
  5. Step 5: Solve for x
    x = 203,849,619.15/13,668.14
  6. Step 6: Final answer
    x = 14,914.22

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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.