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Finding the Fourth Proportional to 18,158.00, 27,247.50 and 7,627.10

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Solution

The fourth proportional to 18,158.00, 27,247.50 and 7,627.10 is: 11,445.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.00 : 27,247.50 = 7,627.10 : x
  2. Step 2: Convert to fraction form
    18,158.00/27,247.50 = 7,627.10/x
  3. Step 3: Cross multiply
    18,158.00x = 27,247.50 × 7,627.10
  4. Step 4: Simplify right side
    18,158.00x = 207,819,271.01
  5. Step 5: Solve for x
    x = 207,819,271.01/18,158.00
  6. Step 6: Final answer
    x = 11,445.06

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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.