Home / 8,827.22-12,171.58-5,636.32

Finding the Fourth Proportional to 8,827.22, 12,171.58 and 5,636.32

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Solution

The fourth proportional to 8,827.22, 12,171.58 and 5,636.32 is: 7,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,827.22 : 12,171.58 = 5,636.32 : x
  2. Step 2: Convert to fraction form
    8,827.22/12,171.58 = 5,636.32/x
  3. Step 3: Cross multiply
    8,827.22x = 12,171.58 × 5,636.32
  4. Step 4: Simplify right side
    8,827.22x = 68,602,919.79
  5. Step 5: Solve for x
    x = 68,602,919.79/8,827.22
  6. Step 6: Final answer
    x = 7,771.75

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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.