Home / 13,293.44-18,345.36-7,629.22

Finding the Fourth Proportional to 13,293.44, 18,345.36 and 7,629.22

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Solution

The fourth proportional to 13,293.44, 18,345.36 and 7,629.22 is: 10,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.44 : 18,345.36 = 7,629.22 : x
  2. Step 2: Convert to fraction form
    13,293.44/18,345.36 = 7,629.22/x
  3. Step 3: Cross multiply
    13,293.44x = 18,345.36 × 7,629.22
  4. Step 4: Simplify right side
    13,293.44x = 139,960,741.56
  5. Step 5: Solve for x
    x = 139,960,741.56/13,293.44
  6. Step 6: Final answer
    x = 10,528.56

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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.