Home / 12,012.87-16,577.67-6,977.31

Finding the Fourth Proportional to 12,012.87, 16,577.67 and 6,977.31

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Solution

The fourth proportional to 12,012.87, 16,577.67 and 6,977.31 is: 9,628.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.87 : 16,577.67 = 6,977.31 : x
  2. Step 2: Convert to fraction form
    12,012.87/16,577.67 = 6,977.31/x
  3. Step 3: Cross multiply
    12,012.87x = 16,577.67 × 6,977.31
  4. Step 4: Simplify right side
    12,012.87x = 115,667,542.67
  5. Step 5: Solve for x
    x = 115,667,542.67/12,012.87
  6. Step 6: Final answer
    x = 9,628.64

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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.