Home / 6,687.02-9,270.32-6,331.50

Finding the Fourth Proportional to 6,687.02, 9,270.32 and 6,331.50

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Solution

The fourth proportional to 6,687.02, 9,270.32 and 6,331.50 is: 8,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.02 : 9,270.32 = 6,331.50 : x
  2. Step 2: Convert to fraction form
    6,687.02/9,270.32 = 6,331.50/x
  3. Step 3: Cross multiply
    6,687.02x = 9,270.32 × 6,331.50
  4. Step 4: Simplify right side
    6,687.02x = 58,694,999.42
  5. Step 5: Solve for x
    x = 58,694,999.42/6,687.02
  6. Step 6: Final answer
    x = 8,777.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.