Home / 13,699.06-20,529.53-7,689.82

Finding the Fourth Proportional to 13,699.06, 20,529.53 and 7,689.82

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Solution

The fourth proportional to 13,699.06, 20,529.53 and 7,689.82 is: 11,524.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.06 : 20,529.53 = 7,689.82 : x
  2. Step 2: Convert to fraction form
    13,699.06/20,529.53 = 7,689.82/x
  3. Step 3: Cross multiply
    13,699.06x = 20,529.53 × 7,689.82
  4. Step 4: Simplify right side
    13,699.06x = 157,868,390.38
  5. Step 5: Solve for x
    x = 157,868,390.38/13,699.06
  6. Step 6: Final answer
    x = 11,524.03

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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.