Home / 13,317.75-18,379.35-7,653.42

Finding the Fourth Proportional to 13,317.75, 18,379.35 and 7,653.42

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Solution

The fourth proportional to 13,317.75, 18,379.35 and 7,653.42 is: 10,562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.75 : 18,379.35 = 7,653.42 : x
  2. Step 2: Convert to fraction form
    13,317.75/18,379.35 = 7,653.42/x
  3. Step 3: Cross multiply
    13,317.75x = 18,379.35 × 7,653.42
  4. Step 4: Simplify right side
    13,317.75x = 140,664,884.88
  5. Step 5: Solve for x
    x = 140,664,884.88/13,317.75
  6. Step 6: Final answer
    x = 10,562.21

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1.5x scale

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.