Home / 13,770.70-20,623.21-7,521.37

Finding the Fourth Proportional to 13,770.70, 20,623.21 and 7,521.37

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Solution

The fourth proportional to 13,770.70, 20,623.21 and 7,521.37 is: 11,264.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.70 : 20,623.21 = 7,521.37 : x
  2. Step 2: Convert to fraction form
    13,770.70/20,623.21 = 7,521.37/x
  3. Step 3: Cross multiply
    13,770.70x = 20,623.21 × 7,521.37
  4. Step 4: Simplify right side
    13,770.70x = 155,114,793.00
  5. Step 5: Solve for x
    x = 155,114,793.00/13,770.70
  6. Step 6: Final answer
    x = 11,264.12

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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.