Home / 8,425.19-11,627.85-7,006.45

Finding the Fourth Proportional to 8,425.19, 11,627.85 and 7,006.45

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Solution

The fourth proportional to 8,425.19, 11,627.85 and 7,006.45 is: 9,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.19 : 11,627.85 = 7,006.45 : x
  2. Step 2: Convert to fraction form
    8,425.19/11,627.85 = 7,006.45/x
  3. Step 3: Cross multiply
    8,425.19x = 11,627.85 × 7,006.45
  4. Step 4: Simplify right side
    8,425.19x = 81,469,968.64
  5. Step 5: Solve for x
    x = 81,469,968.64/8,425.19
  6. Step 6: Final answer
    x = 9,669.81

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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.