Home / 18,276.28-27,405.77-8,412.64

Finding the Fourth Proportional to 18,276.28, 27,405.77 and 8,412.64

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Solution

The fourth proportional to 18,276.28, 27,405.77 and 8,412.64 is: 12,614.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.28 : 27,405.77 = 8,412.64 : x
  2. Step 2: Convert to fraction form
    18,276.28/27,405.77 = 8,412.64/x
  3. Step 3: Cross multiply
    18,276.28x = 27,405.77 × 8,412.64
  4. Step 4: Simplify right side
    18,276.28x = 230,554,876.93
  5. Step 5: Solve for x
    x = 230,554,876.93/18,276.28
  6. Step 6: Final answer
    x = 12,614.98

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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.