Home / 13,291.43-18,342.38-7,323.01

Finding the Fourth Proportional to 13,291.43, 18,342.38 and 7,323.01

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Solution

The fourth proportional to 13,291.43, 18,342.38 and 7,323.01 is: 10,105.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.43 : 18,342.38 = 7,323.01 : x
  2. Step 2: Convert to fraction form
    13,291.43/18,342.38 = 7,323.01/x
  3. Step 3: Cross multiply
    13,291.43x = 18,342.38 × 7,323.01
  4. Step 4: Simplify right side
    13,291.43x = 134,321,404.62
  5. Step 5: Solve for x
    x = 134,321,404.62/13,291.43
  6. Step 6: Final answer
    x = 10,105.87

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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.