Home / 11,875.92-17,815.08-3,110.94

Finding the Fourth Proportional to 11,875.92, 17,815.08 and 3,110.94

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Solution

The fourth proportional to 11,875.92, 17,815.08 and 3,110.94 is: 4,666.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.92 : 17,815.08 = 3,110.94 : x
  2. Step 2: Convert to fraction form
    11,875.92/17,815.08 = 3,110.94/x
  3. Step 3: Cross multiply
    11,875.92x = 17,815.08 × 3,110.94
  4. Step 4: Simplify right side
    11,875.92x = 55,421,644.98
  5. Step 5: Solve for x
    x = 55,421,644.98/11,875.92
  6. Step 6: Final answer
    x = 4,666.72

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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.