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Finding the Fourth Proportional to 18,077.40, 27,140.40 and 11,532.60

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Solution

The fourth proportional to 18,077.40, 27,140.40 and 11,532.60 is: 17,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,077.40 : 27,140.40 = 11,532.60 : x
  2. Step 2: Convert to fraction form
    18,077.40/27,140.40 = 11,532.60/x
  3. Step 3: Cross multiply
    18,077.40x = 27,140.40 × 11,532.60
  4. Step 4: Simplify right side
    18,077.40x = 312,999,377.04
  5. Step 5: Solve for x
    x = 312,999,377.04/18,077.40
  6. Step 6: Final answer
    x = 17,314.40

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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.