Home / 13,312.92-19,969.32-3,451.38

Finding the Fourth Proportional to 13,312.92, 19,969.32 and 3,451.38

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Solution

The fourth proportional to 13,312.92, 19,969.32 and 3,451.38 is: 5,177.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.92 : 19,969.32 = 3,451.38 : x
  2. Step 2: Convert to fraction form
    13,312.92/19,969.32 = 3,451.38/x
  3. Step 3: Cross multiply
    13,312.92x = 19,969.32 × 3,451.38
  4. Step 4: Simplify right side
    13,312.92x = 68,921,711.66
  5. Step 5: Solve for x
    x = 68,921,711.66/13,312.92
  6. Step 6: Final answer
    x = 5,177.05

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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.