Home / 11,904.48-17,855.16-3,140.09

Finding the Fourth Proportional to 11,904.48, 17,855.16 and 3,140.09

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Solution

The fourth proportional to 11,904.48, 17,855.16 and 3,140.09 is: 4,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.48 : 17,855.16 = 3,140.09 : x
  2. Step 2: Convert to fraction form
    11,904.48/17,855.16 = 3,140.09/x
  3. Step 3: Cross multiply
    11,904.48x = 17,855.16 × 3,140.09
  4. Step 4: Simplify right side
    11,904.48x = 56,066,720.09
  5. Step 5: Solve for x
    x = 56,066,720.09/11,904.48
  6. Step 6: Final answer
    x = 4,709.72

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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.