Home / 8,517.42-12,776.49-2,971.32

Finding the Fourth Proportional to 8,517.42, 12,776.49 and 2,971.32

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Solution

The fourth proportional to 8,517.42, 12,776.49 and 2,971.32 is: 4,457.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.42 : 12,776.49 = 2,971.32 : x
  2. Step 2: Convert to fraction form
    8,517.42/12,776.49 = 2,971.32/x
  3. Step 3: Cross multiply
    8,517.42x = 12,776.49 × 2,971.32
  4. Step 4: Simplify right side
    8,517.42x = 37,963,040.27
  5. Step 5: Solve for x
    x = 37,963,040.27/8,517.42
  6. Step 6: Final answer
    x = 4,457.11

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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.