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Finding the Fourth Proportional to 18,256.58, 27,384.90 and 4,405.58

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Solution

The fourth proportional to 18,256.58, 27,384.90 and 4,405.58 is: 6,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256.58 : 27,384.90 = 4,405.58 : x
  2. Step 2: Convert to fraction form
    18,256.58/27,384.90 = 4,405.58/x
  3. Step 3: Cross multiply
    18,256.58x = 27,384.90 × 4,405.58
  4. Step 4: Simplify right side
    18,256.58x = 120,646,367.74
  5. Step 5: Solve for x
    x = 120,646,367.74/18,256.58
  6. Step 6: Final answer
    x = 6,608.38

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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.