Home / 9,138.21-13,707.31-2,564.60

Finding the Fourth Proportional to 9,138.21, 13,707.31 and 2,564.60

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Solution

The fourth proportional to 9,138.21, 13,707.31 and 2,564.60 is: 3,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.21 : 13,707.31 = 2,564.60 : x
  2. Step 2: Convert to fraction form
    9,138.21/13,707.31 = 2,564.60/x
  3. Step 3: Cross multiply
    9,138.21x = 13,707.31 × 2,564.60
  4. Step 4: Simplify right side
    9,138.21x = 35,153,767.23
  5. Step 5: Solve for x
    x = 35,153,767.23/9,138.21
  6. Step 6: Final answer
    x = 3,846.90

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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.