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Finding the Fourth Proportional to 18,374.70, 27,556.65 and 7,277.70

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Solution

The fourth proportional to 18,374.70, 27,556.65 and 7,277.70 is: 10,914.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.70 : 27,556.65 = 7,277.70 : x
  2. Step 2: Convert to fraction form
    18,374.70/27,556.65 = 7,277.70/x
  3. Step 3: Cross multiply
    18,374.70x = 27,556.65 × 7,277.70
  4. Step 4: Simplify right side
    18,374.70x = 200,549,031.71
  5. Step 5: Solve for x
    x = 200,549,031.71/18,374.70
  6. Step 6: Final answer
    x = 10,914.41

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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.