Home / 13,293.92-18,342.43-7,551.09

Finding the Fourth Proportional to 13,293.92, 18,342.43 and 7,551.09

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Solution

The fourth proportional to 13,293.92, 18,342.43 and 7,551.09 is: 10,418.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.92 : 18,342.43 = 7,551.09 : x
  2. Step 2: Convert to fraction form
    13,293.92/18,342.43 = 7,551.09/x
  3. Step 3: Cross multiply
    13,293.92x = 18,342.43 × 7,551.09
  4. Step 4: Simplify right side
    13,293.92x = 138,505,248.04
  5. Step 5: Solve for x
    x = 138,505,248.04/13,293.92
  6. Step 6: Final answer
    x = 10,418.70

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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.