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Finding the Fourth Proportional to 18,110.40, 27,171.52 and 8,751.50

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Solution

The fourth proportional to 18,110.40, 27,171.52 and 8,751.50 is: 13,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.40 : 27,171.52 = 8,751.50 : x
  2. Step 2: Convert to fraction form
    18,110.40/27,171.52 = 8,751.50/x
  3. Step 3: Cross multiply
    18,110.40x = 27,171.52 × 8,751.50
  4. Step 4: Simplify right side
    18,110.40x = 237,791,399.54
  5. Step 5: Solve for x
    x = 237,791,399.54/18,110.40
  6. Step 6: Final answer
    x = 13,130.10

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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.