Home / 13,291.54-18,342.24-7,323.07

Finding the Fourth Proportional to 13,291.54, 18,342.24 and 7,323.07

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Solution

The fourth proportional to 13,291.54, 18,342.24 and 7,323.07 is: 10,105.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.54 : 18,342.24 = 7,323.07 : x
  2. Step 2: Convert to fraction form
    13,291.54/18,342.24 = 7,323.07/x
  3. Step 3: Cross multiply
    13,291.54x = 18,342.24 × 7,323.07
  4. Step 4: Simplify right side
    13,291.54x = 134,321,507.48
  5. Step 5: Solve for x
    x = 134,321,507.48/13,291.54
  6. Step 6: Final answer
    x = 10,105.79

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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.