Home / 8,618.08-12,928.64-4,456.96

Finding the Fourth Proportional to 8,618.08, 12,928.64 and 4,456.96

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Solution

The fourth proportional to 8,618.08, 12,928.64 and 4,456.96 is: 6,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.08 : 12,928.64 = 4,456.96 : x
  2. Step 2: Convert to fraction form
    8,618.08/12,928.64 = 4,456.96/x
  3. Step 3: Cross multiply
    8,618.08x = 12,928.64 × 4,456.96
  4. Step 4: Simplify right side
    8,618.08x = 57,622,431.33
  5. Step 5: Solve for x
    x = 57,622,431.33/8,618.08
  6. Step 6: Final answer
    x = 6,686.23

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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.