Home / 13,290.82-18,341.13-7,322.33

Finding the Fourth Proportional to 13,290.82, 18,341.13 and 7,322.33

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Solution

The fourth proportional to 13,290.82, 18,341.13 and 7,322.33 is: 10,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.82 : 18,341.13 = 7,322.33 : x
  2. Step 2: Convert to fraction form
    13,290.82/18,341.13 = 7,322.33/x
  3. Step 3: Cross multiply
    13,290.82x = 18,341.13 × 7,322.33
  4. Step 4: Simplify right side
    13,290.82x = 134,299,879.74
  5. Step 5: Solve for x
    x = 134,299,879.74/13,290.82
  6. Step 6: Final answer
    x = 10,104.71

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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.