Home / 11,931.95-17,896.55-3,167.55

Finding the Fourth Proportional to 11,931.95, 17,896.55 and 3,167.55

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Solution

The fourth proportional to 11,931.95, 17,896.55 and 3,167.55 is: 4,750.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.95 : 17,896.55 = 3,167.55 : x
  2. Step 2: Convert to fraction form
    11,931.95/17,896.55 = 3,167.55/x
  3. Step 3: Cross multiply
    11,931.95x = 17,896.55 × 3,167.55
  4. Step 4: Simplify right side
    11,931.95x = 56,688,201.11
  5. Step 5: Solve for x
    x = 56,688,201.11/11,931.95
  6. Step 6: Final answer
    x = 4,750.96

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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.