Home / 8,741.90-13,115.53-5,235.86

Finding the Fourth Proportional to 8,741.90, 13,115.53 and 5,235.86

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Solution

The fourth proportional to 8,741.90, 13,115.53 and 5,235.86 is: 7,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.90 : 13,115.53 = 5,235.86 : x
  2. Step 2: Convert to fraction form
    8,741.90/13,115.53 = 5,235.86/x
  3. Step 3: Cross multiply
    8,741.90x = 13,115.53 × 5,235.86
  4. Step 4: Simplify right side
    8,741.90x = 68,671,118.24
  5. Step 5: Solve for x
    x = 68,671,118.24/8,741.90
  6. Step 6: Final answer
    x = 7,855.40

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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.