Home / 12,255.50-16,912.72-6,666.62

Finding the Fourth Proportional to 12,255.50, 16,912.72 and 6,666.62

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Solution

The fourth proportional to 12,255.50, 16,912.72 and 6,666.62 is: 9,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.50 : 16,912.72 = 6,666.62 : x
  2. Step 2: Convert to fraction form
    12,255.50/16,912.72 = 6,666.62/x
  3. Step 3: Cross multiply
    12,255.50x = 16,912.72 × 6,666.62
  4. Step 4: Simplify right side
    12,255.50x = 112,750,677.41
  5. Step 5: Solve for x
    x = 112,750,677.41/12,255.50
  6. Step 6: Final answer
    x = 9,200.01

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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.