Home / 18,908.17-28,362.41-5,399.30

Finding the Fourth Proportional to 18,908.17, 28,362.41 and 5,399.30

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Solution

The fourth proportional to 18,908.17, 28,362.41 and 5,399.30 is: 8,099.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.17 : 28,362.41 = 5,399.30 : x
  2. Step 2: Convert to fraction form
    18,908.17/28,362.41 = 5,399.30/x
  3. Step 3: Cross multiply
    18,908.17x = 28,362.41 × 5,399.30
  4. Step 4: Simplify right side
    18,908.17x = 153,137,188.38
  5. Step 5: Solve for x
    x = 153,137,188.38/18,908.17
  6. Step 6: Final answer
    x = 8,099.00

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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.