Home / 8,621.14-12,931.77-3,427.03

Finding the Fourth Proportional to 8,621.14, 12,931.77 and 3,427.03

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Solution

The fourth proportional to 8,621.14, 12,931.77 and 3,427.03 is: 5,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.14 : 12,931.77 = 3,427.03 : x
  2. Step 2: Convert to fraction form
    8,621.14/12,931.77 = 3,427.03/x
  3. Step 3: Cross multiply
    8,621.14x = 12,931.77 × 3,427.03
  4. Step 4: Simplify right side
    8,621.14x = 44,317,563.74
  5. Step 5: Solve for x
    x = 44,317,563.74/8,621.14
  6. Step 6: Final answer
    x = 5,140.57

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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.