Home / 13,042.40-19,556.40-5,645.60

Finding the Fourth Proportional to 13,042.40, 19,556.40 and 5,645.60

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Solution

The fourth proportional to 13,042.40, 19,556.40 and 5,645.60 is: 8,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.40 : 19,556.40 = 5,645.60 : x
  2. Step 2: Convert to fraction form
    13,042.40/19,556.40 = 5,645.60/x
  3. Step 3: Cross multiply
    13,042.40x = 19,556.40 × 5,645.60
  4. Step 4: Simplify right side
    13,042.40x = 110,407,611.84
  5. Step 5: Solve for x
    x = 110,407,611.84/13,042.40
  6. Step 6: Final answer
    x = 8,465.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.