Home / 13,392.36-20,090.16-6,462

Finding the Fourth Proportional to 13,392.36, 20,090.16 and 6,462

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Solution

The fourth proportional to 13,392.36, 20,090.16 and 6,462 is: 9,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.36 : 20,090.16 = 6,462 : x
  2. Step 2: Convert to fraction form
    13,392.36/20,090.16 = 6,462/x
  3. Step 3: Cross multiply
    13,392.36x = 20,090.16 × 6,462
  4. Step 4: Simplify right side
    13,392.36x = 129,822,613.92
  5. Step 5: Solve for x
    x = 129,822,613.92/13,392.36
  6. Step 6: Final answer
    x = 9,693.78

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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.