Home / 8,899.14-12,245.40-8,628.60

Finding the Fourth Proportional to 8,899.14, 12,245.40 and 8,628.60

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Solution

The fourth proportional to 8,899.14, 12,245.40 and 8,628.60 is: 11,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.14 : 12,245.40 = 8,628.60 : x
  2. Step 2: Convert to fraction form
    8,899.14/12,245.40 = 8,628.60/x
  3. Step 3: Cross multiply
    8,899.14x = 12,245.40 × 8,628.60
  4. Step 4: Simplify right side
    8,899.14x = 105,660,658.44
  5. Step 5: Solve for x
    x = 105,660,658.44/8,899.14
  6. Step 6: Final answer
    x = 11,873.13

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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.