Home / 11,180.12-15,435.32-7,406.49

Finding the Fourth Proportional to 11,180.12, 15,435.32 and 7,406.49

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Solution

The fourth proportional to 11,180.12, 15,435.32 and 7,406.49 is: 10,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.12 : 15,435.32 = 7,406.49 : x
  2. Step 2: Convert to fraction form
    11,180.12/15,435.32 = 7,406.49/x
  3. Step 3: Cross multiply
    11,180.12x = 15,435.32 × 7,406.49
  4. Step 4: Simplify right side
    11,180.12x = 114,321,506.19
  5. Step 5: Solve for x
    x = 114,321,506.19/11,180.12
  6. Step 6: Final answer
    x = 10,225.43

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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.