Home / 8,608.12-12,930.80-7,294.60

Finding the Fourth Proportional to 8,608.12, 12,930.80 and 7,294.60

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Solution

The fourth proportional to 8,608.12, 12,930.80 and 7,294.60 is: 10,957.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.12 : 12,930.80 = 7,294.60 : x
  2. Step 2: Convert to fraction form
    8,608.12/12,930.80 = 7,294.60/x
  3. Step 3: Cross multiply
    8,608.12x = 12,930.80 × 7,294.60
  4. Step 4: Simplify right side
    8,608.12x = 94,325,013.68
  5. Step 5: Solve for x
    x = 94,325,013.68/8,608.12
  6. Step 6: Final answer
    x = 10,957.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.