Home / 13,242.18-19,863.45-3,381.54

Finding the Fourth Proportional to 13,242.18, 19,863.45 and 3,381.54

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Solution

The fourth proportional to 13,242.18, 19,863.45 and 3,381.54 is: 5,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.18 : 19,863.45 = 3,381.54 : x
  2. Step 2: Convert to fraction form
    13,242.18/19,863.45 = 3,381.54/x
  3. Step 3: Cross multiply
    13,242.18x = 19,863.45 × 3,381.54
  4. Step 4: Simplify right side
    13,242.18x = 67,169,050.71
  5. Step 5: Solve for x
    x = 67,169,050.71/13,242.18
  6. Step 6: Final answer
    x = 5,072.36

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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.