Home / 13,762.28-18,982.27-8,460.02

Finding the Fourth Proportional to 13,762.28, 18,982.27 and 8,460.02

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Solution

The fourth proportional to 13,762.28, 18,982.27 and 8,460.02 is: 11,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.28 : 18,982.27 = 8,460.02 : x
  2. Step 2: Convert to fraction form
    13,762.28/18,982.27 = 8,460.02/x
  3. Step 3: Cross multiply
    13,762.28x = 18,982.27 × 8,460.02
  4. Step 4: Simplify right side
    13,762.28x = 160,590,383.85
  5. Step 5: Solve for x
    x = 160,590,383.85/13,762.28
  6. Step 6: Final answer
    x = 11,668.88

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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.