Home / 18,276.03-27,405.40-8,412.39

Finding the Fourth Proportional to 18,276.03, 27,405.40 and 8,412.39

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Solution

The fourth proportional to 18,276.03, 27,405.40 and 8,412.39 is: 12,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.03 : 27,405.40 = 8,412.39 : x
  2. Step 2: Convert to fraction form
    18,276.03/27,405.40 = 8,412.39/x
  3. Step 3: Cross multiply
    18,276.03x = 27,405.40 × 8,412.39
  4. Step 4: Simplify right side
    18,276.03x = 230,544,733.82
  5. Step 5: Solve for x
    x = 230,544,733.82/18,276.03
  6. Step 6: Final answer
    x = 12,614.60

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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.