Home / 13,678.21-20,560.14-9,028.11

Finding the Fourth Proportional to 13,678.21, 20,560.14 and 9,028.11

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Solution

The fourth proportional to 13,678.21, 20,560.14 and 9,028.11 is: 13,570.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.21 : 20,560.14 = 9,028.11 : x
  2. Step 2: Convert to fraction form
    13,678.21/20,560.14 = 9,028.11/x
  3. Step 3: Cross multiply
    13,678.21x = 20,560.14 × 9,028.11
  4. Step 4: Simplify right side
    13,678.21x = 185,619,205.54
  5. Step 5: Solve for x
    x = 185,619,205.54/13,678.21
  6. Step 6: Final answer
    x = 13,570.43

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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.