Home / 11,858.85-17,788.58-5,617.40

Finding the Fourth Proportional to 11,858.85, 17,788.58 and 5,617.40

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Solution

The fourth proportional to 11,858.85, 17,788.58 and 5,617.40 is: 8,426.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.85 : 17,788.58 = 5,617.40 : x
  2. Step 2: Convert to fraction form
    11,858.85/17,788.58 = 5,617.40/x
  3. Step 3: Cross multiply
    11,858.85x = 17,788.58 × 5,617.40
  4. Step 4: Simplify right side
    11,858.85x = 99,925,494.39
  5. Step 5: Solve for x
    x = 99,925,494.39/11,858.85
  6. Step 6: Final answer
    x = 8,426.24

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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.