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Finding the Fourth Proportional to 18,030.60, 27,041.04 and 8,164.80

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Solution

The fourth proportional to 18,030.60, 27,041.04 and 8,164.80 is: 12,245.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.60 : 27,041.04 = 8,164.80 : x
  2. Step 2: Convert to fraction form
    18,030.60/27,041.04 = 8,164.80/x
  3. Step 3: Cross multiply
    18,030.60x = 27,041.04 × 8,164.80
  4. Step 4: Simplify right side
    18,030.60x = 220,784,683.39
  5. Step 5: Solve for x
    x = 220,784,683.39/18,030.60
  6. Step 6: Final answer
    x = 12,245.00

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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.