Home / 13,254.91-19,881.90-3,394.27

Finding the Fourth Proportional to 13,254.91, 19,881.90 and 3,394.27

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Solution

The fourth proportional to 13,254.91, 19,881.90 and 3,394.27 is: 5,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.91 : 19,881.90 = 3,394.27 : x
  2. Step 2: Convert to fraction form
    13,254.91/19,881.90 = 3,394.27/x
  3. Step 3: Cross multiply
    13,254.91x = 19,881.90 × 3,394.27
  4. Step 4: Simplify right side
    13,254.91x = 67,484,487.01
  5. Step 5: Solve for x
    x = 67,484,487.01/13,254.91
  6. Step 6: Final answer
    x = 5,091.28

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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.