Home / 8,455.07-11,672.10-5,627.16

Finding the Fourth Proportional to 8,455.07, 11,672.10 and 5,627.16

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Solution

The fourth proportional to 8,455.07, 11,672.10 and 5,627.16 is: 7,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.07 : 11,672.10 = 5,627.16 : x
  2. Step 2: Convert to fraction form
    8,455.07/11,672.10 = 5,627.16/x
  3. Step 3: Cross multiply
    8,455.07x = 11,672.10 × 5,627.16
  4. Step 4: Simplify right side
    8,455.07x = 65,680,774.24
  5. Step 5: Solve for x
    x = 65,680,774.24/8,455.07
  6. Step 6: Final answer
    x = 7,768.21

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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.