Home / 13,243.10-18,257.62-11,346.48

Finding the Fourth Proportional to 13,243.10, 18,257.62 and 11,346.48

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Solution

The fourth proportional to 13,243.10, 18,257.62 and 11,346.48 is: 15,642.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.10 : 18,257.62 = 11,346.48 : x
  2. Step 2: Convert to fraction form
    13,243.10/18,257.62 = 11,346.48/x
  3. Step 3: Cross multiply
    13,243.10x = 18,257.62 × 11,346.48
  4. Step 4: Simplify right side
    13,243.10x = 207,159,720.18
  5. Step 5: Solve for x
    x = 207,159,720.18/13,243.10
  6. Step 6: Final answer
    x = 15,642.84

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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.