Home / 18,509.02-27,763.74-5,181.22

Finding the Fourth Proportional to 18,509.02, 27,763.74 and 5,181.22

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Solution

The fourth proportional to 18,509.02, 27,763.74 and 5,181.22 is: 7,771.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.02 : 27,763.74 = 5,181.22 : x
  2. Step 2: Convert to fraction form
    18,509.02/27,763.74 = 5,181.22/x
  3. Step 3: Cross multiply
    18,509.02x = 27,763.74 × 5,181.22
  4. Step 4: Simplify right side
    18,509.02x = 143,849,880.24
  5. Step 5: Solve for x
    x = 143,849,880.24/18,509.02
  6. Step 6: Final answer
    x = 7,771.88

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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.