Home / 13,152.32-18,149.56-7,183.84

Finding the Fourth Proportional to 13,152.32, 18,149.56 and 7,183.84

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Solution

The fourth proportional to 13,152.32, 18,149.56 and 7,183.84 is: 9,913.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.32 : 18,149.56 = 7,183.84 : x
  2. Step 2: Convert to fraction form
    13,152.32/18,149.56 = 7,183.84/x
  3. Step 3: Cross multiply
    13,152.32x = 18,149.56 × 7,183.84
  4. Step 4: Simplify right side
    13,152.32x = 130,383,535.11
  5. Step 5: Solve for x
    x = 130,383,535.11/13,152.32
  6. Step 6: Final answer
    x = 9,913.35

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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.