Home / 13,394.19-18,429.66-10,995.35

Finding the Fourth Proportional to 13,394.19, 18,429.66 and 10,995.35

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Solution

The fourth proportional to 13,394.19, 18,429.66 and 10,995.35 is: 15,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.19 : 18,429.66 = 10,995.35 : x
  2. Step 2: Convert to fraction form
    13,394.19/18,429.66 = 10,995.35/x
  3. Step 3: Cross multiply
    13,394.19x = 18,429.66 × 10,995.35
  4. Step 4: Simplify right side
    13,394.19x = 202,640,469.93
  5. Step 5: Solve for x
    x = 202,640,469.93/13,394.19
  6. Step 6: Final answer
    x = 15,128.98

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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.