Home / 11,666.40-17,499.60-3,874.20

Finding the Fourth Proportional to 11,666.40, 17,499.60 and 3,874.20

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Solution

The fourth proportional to 11,666.40, 17,499.60 and 3,874.20 is: 5,811.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.40 : 17,499.60 = 3,874.20 : x
  2. Step 2: Convert to fraction form
    11,666.40/17,499.60 = 3,874.20/x
  3. Step 3: Cross multiply
    11,666.40x = 17,499.60 × 3,874.20
  4. Step 4: Simplify right side
    11,666.40x = 67,796,950.32
  5. Step 5: Solve for x
    x = 67,796,950.32/11,666.40
  6. Step 6: Final answer
    x = 5,811.30

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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.