Home / 11,775.35-17,652.05-3,978.71

Finding the Fourth Proportional to 11,775.35, 17,652.05 and 3,978.71

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Solution

The fourth proportional to 11,775.35, 17,652.05 and 3,978.71 is: 5,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.35 : 17,652.05 = 3,978.71 : x
  2. Step 2: Convert to fraction form
    11,775.35/17,652.05 = 3,978.71/x
  3. Step 3: Cross multiply
    11,775.35x = 17,652.05 × 3,978.71
  4. Step 4: Simplify right side
    11,775.35x = 70,232,367.96
  5. Step 5: Solve for x
    x = 70,232,367.96/11,775.35
  6. Step 6: Final answer
    x = 5,964.36

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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.