Home / 11,875.12-17,811.60-3,110.92

Finding the Fourth Proportional to 11,875.12, 17,811.60 and 3,110.92

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Solution

The fourth proportional to 11,875.12, 17,811.60 and 3,110.92 is: 4,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.12 : 17,811.60 = 3,110.92 : x
  2. Step 2: Convert to fraction form
    11,875.12/17,811.60 = 3,110.92/x
  3. Step 3: Cross multiply
    11,875.12x = 17,811.60 × 3,110.92
  4. Step 4: Simplify right side
    11,875.12x = 55,410,462.67
  5. Step 5: Solve for x
    x = 55,410,462.67/11,875.12
  6. Step 6: Final answer
    x = 4,666.10

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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.