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Finding the Fourth Proportional to 18,276.68, 27,415.02 and 4,425.68

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Solution

The fourth proportional to 18,276.68, 27,415.02 and 4,425.68 is: 6,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.68 : 27,415.02 = 4,425.68 : x
  2. Step 2: Convert to fraction form
    18,276.68/27,415.02 = 4,425.68/x
  3. Step 3: Cross multiply
    18,276.68x = 27,415.02 × 4,425.68
  4. Step 4: Simplify right side
    18,276.68x = 121,330,105.71
  5. Step 5: Solve for x
    x = 121,330,105.71/18,276.68
  6. Step 6: Final answer
    x = 6,638.52

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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.