Home / 13,902.33-19,200.80-9,418.30

Finding the Fourth Proportional to 13,902.33, 19,200.80 and 9,418.30

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Solution

The fourth proportional to 13,902.33, 19,200.80 and 9,418.30 is: 13,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.33 : 19,200.80 = 9,418.30 : x
  2. Step 2: Convert to fraction form
    13,902.33/19,200.80 = 9,418.30/x
  3. Step 3: Cross multiply
    13,902.33x = 19,200.80 × 9,418.30
  4. Step 4: Simplify right side
    13,902.33x = 180,838,871.21
  5. Step 5: Solve for x
    x = 180,838,871.21/13,902.33
  6. Step 6: Final answer
    x = 13,007.81

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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.