Home / 13,394.82-18,430.52-10,995.97

Finding the Fourth Proportional to 13,394.82, 18,430.52 and 10,995.97

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Solution

The fourth proportional to 13,394.82, 18,430.52 and 10,995.97 is: 15,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.82 : 18,430.52 = 10,995.97 : x
  2. Step 2: Convert to fraction form
    13,394.82/18,430.52 = 10,995.97/x
  3. Step 3: Cross multiply
    13,394.82x = 18,430.52 × 10,995.97
  4. Step 4: Simplify right side
    13,394.82x = 202,661,472.49
  5. Step 5: Solve for x
    x = 202,661,472.49/13,394.82
  6. Step 6: Final answer
    x = 15,129.84

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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.