Home / 12,087.80-16,680.90-6,709.92

Finding the Fourth Proportional to 12,087.80, 16,680.90 and 6,709.92

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Solution

The fourth proportional to 12,087.80, 16,680.90 and 6,709.92 is: 9,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.80 : 16,680.90 = 6,709.92 : x
  2. Step 2: Convert to fraction form
    12,087.80/16,680.90 = 6,709.92/x
  3. Step 3: Cross multiply
    12,087.80x = 16,680.90 × 6,709.92
  4. Step 4: Simplify right side
    12,087.80x = 111,927,504.53
  5. Step 5: Solve for x
    x = 111,927,504.53/12,087.80
  6. Step 6: Final answer
    x = 9,259.54

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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.