Home / 8,146.10-11,208.21-7,627.70

Finding the Fourth Proportional to 8,146.10, 11,208.21 and 7,627.70

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Solution

The fourth proportional to 8,146.10, 11,208.21 and 7,627.70 is: 10,494.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.10 : 11,208.21 = 7,627.70 : x
  2. Step 2: Convert to fraction form
    8,146.10/11,208.21 = 7,627.70/x
  3. Step 3: Cross multiply
    8,146.10x = 11,208.21 × 7,627.70
  4. Step 4: Simplify right side
    8,146.10x = 85,492,863.42
  5. Step 5: Solve for x
    x = 85,492,863.42/8,146.10
  6. Step 6: Final answer
    x = 10,494.94

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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.