Home / 12,072.81-16,659.36-6,766.50

Finding the Fourth Proportional to 12,072.81, 16,659.36 and 6,766.50

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Solution

The fourth proportional to 12,072.81, 16,659.36 and 6,766.50 is: 9,337.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.81 : 16,659.36 = 6,766.50 : x
  2. Step 2: Convert to fraction form
    12,072.81/16,659.36 = 6,766.50/x
  3. Step 3: Cross multiply
    12,072.81x = 16,659.36 × 6,766.50
  4. Step 4: Simplify right side
    12,072.81x = 112,725,559.44
  5. Step 5: Solve for x
    x = 112,725,559.44/12,072.81
  6. Step 6: Final answer
    x = 9,337.14

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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.