Home / 9,825.18-13,556.75-5,518.41

Finding the Fourth Proportional to 9,825.18, 13,556.75 and 5,518.41

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Solution

The fourth proportional to 9,825.18, 13,556.75 and 5,518.41 is: 7,614.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,825.18 : 13,556.75 = 5,518.41 : x
  2. Step 2: Convert to fraction form
    9,825.18/13,556.75 = 5,518.41/x
  3. Step 3: Cross multiply
    9,825.18x = 13,556.75 × 5,518.41
  4. Step 4: Simplify right side
    9,825.18x = 74,811,677.18
  5. Step 5: Solve for x
    x = 74,811,677.18/9,825.18
  6. Step 6: Final answer
    x = 7,614.28

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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.