Home / 8,666.20-12,977.16-4,766.32

Finding the Fourth Proportional to 8,666.20, 12,977.16 and 4,766.32

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Solution

The fourth proportional to 8,666.20, 12,977.16 and 4,766.32 is: 7,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.20 : 12,977.16 = 4,766.32 : x
  2. Step 2: Convert to fraction form
    8,666.20/12,977.16 = 4,766.32/x
  3. Step 3: Cross multiply
    8,666.20x = 12,977.16 × 4,766.32
  4. Step 4: Simplify right side
    8,666.20x = 61,853,297.25
  5. Step 5: Solve for x
    x = 61,853,297.25/8,666.20
  6. Step 6: Final answer
    x = 7,137.30

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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.