Home / 7,378.64-10,183.24-5,512.40

Finding the Fourth Proportional to 7,378.64, 10,183.24 and 5,512.40

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Solution

The fourth proportional to 7,378.64, 10,183.24 and 5,512.40 is: 7,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.64 : 10,183.24 = 5,512.40 : x
  2. Step 2: Convert to fraction form
    7,378.64/10,183.24 = 5,512.40/x
  3. Step 3: Cross multiply
    7,378.64x = 10,183.24 × 5,512.40
  4. Step 4: Simplify right side
    7,378.64x = 56,134,092.18
  5. Step 5: Solve for x
    x = 56,134,092.18/7,378.64
  6. Step 6: Final answer
    x = 7,607.65

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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.