Home / 13,506.35-18,636.48-7,537.86

Finding the Fourth Proportional to 13,506.35, 18,636.48 and 7,537.86

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Solution

The fourth proportional to 13,506.35, 18,636.48 and 7,537.86 is: 10,400.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.35 : 18,636.48 = 7,537.86 : x
  2. Step 2: Convert to fraction form
    13,506.35/18,636.48 = 7,537.86/x
  3. Step 3: Cross multiply
    13,506.35x = 18,636.48 × 7,537.86
  4. Step 4: Simplify right side
    13,506.35x = 140,479,177.13
  5. Step 5: Solve for x
    x = 140,479,177.13/13,506.35
  6. Step 6: Final answer
    x = 10,400.98

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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.