Home / 11,381.40-17,063.88-7,674.36

Finding the Fourth Proportional to 11,381.40, 17,063.88 and 7,674.36

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Solution

The fourth proportional to 11,381.40, 17,063.88 and 7,674.36 is: 11,506.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.40 : 17,063.88 = 7,674.36 : x
  2. Step 2: Convert to fraction form
    11,381.40/17,063.88 = 7,674.36/x
  3. Step 3: Cross multiply
    11,381.40x = 17,063.88 × 7,674.36
  4. Step 4: Simplify right side
    11,381.40x = 130,954,358.12
  5. Step 5: Solve for x
    x = 130,954,358.12/11,381.40
  6. Step 6: Final answer
    x = 11,506.00

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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.