Home / 13,201.18-18,223.33-7,894.97

Finding the Fourth Proportional to 13,201.18, 18,223.33 and 7,894.97

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Solution

The fourth proportional to 13,201.18, 18,223.33 and 7,894.97 is: 10,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.18 : 18,223.33 = 7,894.97 : x
  2. Step 2: Convert to fraction form
    13,201.18/18,223.33 = 7,894.97/x
  3. Step 3: Cross multiply
    13,201.18x = 18,223.33 × 7,894.97
  4. Step 4: Simplify right side
    13,201.18x = 143,872,615.94
  5. Step 5: Solve for x
    x = 143,872,615.94/13,201.18
  6. Step 6: Final answer
    x = 10,898.47

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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.