Home / 13,317.24-18,379.26-7,653

Finding the Fourth Proportional to 13,317.24, 18,379.26 and 7,653

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Solution

The fourth proportional to 13,317.24, 18,379.26 and 7,653 is: 10,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.24 : 18,379.26 = 7,653 : x
  2. Step 2: Convert to fraction form
    13,317.24/18,379.26 = 7,653/x
  3. Step 3: Cross multiply
    13,317.24x = 18,379.26 × 7,653
  4. Step 4: Simplify right side
    13,317.24x = 140,656,476.78
  5. Step 5: Solve for x
    x = 140,656,476.78/13,317.24
  6. Step 6: Final answer
    x = 10,561.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.