Home / 12,282.98-16,950.43-6,977.80

Finding the Fourth Proportional to 12,282.98, 16,950.43 and 6,977.80

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Solution

The fourth proportional to 12,282.98, 16,950.43 and 6,977.80 is: 9,629.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.98 : 16,950.43 = 6,977.80 : x
  2. Step 2: Convert to fraction form
    12,282.98/16,950.43 = 6,977.80/x
  3. Step 3: Cross multiply
    12,282.98x = 16,950.43 × 6,977.80
  4. Step 4: Simplify right side
    12,282.98x = 118,276,710.45
  5. Step 5: Solve for x
    x = 118,276,710.45/12,282.98
  6. Step 6: Final answer
    x = 9,629.32

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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.