Home / 18,311.31-27,466.97-6,621.80

Finding the Fourth Proportional to 18,311.31, 27,466.97 and 6,621.80

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Solution

The fourth proportional to 18,311.31, 27,466.97 and 6,621.80 is: 9,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.31 : 27,466.97 = 6,621.80 : x
  2. Step 2: Convert to fraction form
    18,311.31/27,466.97 = 6,621.80/x
  3. Step 3: Cross multiply
    18,311.31x = 27,466.97 × 6,621.80
  4. Step 4: Simplify right side
    18,311.31x = 181,880,681.63
  5. Step 5: Solve for x
    x = 181,880,681.63/18,311.31
  6. Step 6: Final answer
    x = 9,932.70

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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.