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Finding the Fourth Proportional to 18,485.76, 27,741.60 and 10,683.84

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Solution

The fourth proportional to 18,485.76, 27,741.60 and 10,683.84 is: 16,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.76 : 27,741.60 = 10,683.84 : x
  2. Step 2: Convert to fraction form
    18,485.76/27,741.60 = 10,683.84/x
  3. Step 3: Cross multiply
    18,485.76x = 27,741.60 × 10,683.84
  4. Step 4: Simplify right side
    18,485.76x = 296,386,815.74
  5. Step 5: Solve for x
    x = 296,386,815.74/18,485.76
  6. Step 6: Final answer
    x = 16,033.25

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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.