Home / 7,816.02-11,729.64-3,072.90

Finding the Fourth Proportional to 7,816.02, 11,729.64 and 3,072.90

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Solution

The fourth proportional to 7,816.02, 11,729.64 and 3,072.90 is: 4,611.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.02 : 11,729.64 = 3,072.90 : x
  2. Step 2: Convert to fraction form
    7,816.02/11,729.64 = 3,072.90/x
  3. Step 3: Cross multiply
    7,816.02x = 11,729.64 × 3,072.90
  4. Step 4: Simplify right side
    7,816.02x = 36,044,010.76
  5. Step 5: Solve for x
    x = 36,044,010.76/7,816.02
  6. Step 6: Final answer
    x = 4,611.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.