Home / 13,317.66-19,986.48-5,005.86

Finding the Fourth Proportional to 13,317.66, 19,986.48 and 5,005.86

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Solution

The fourth proportional to 13,317.66, 19,986.48 and 5,005.86 is: 7,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.66 : 19,986.48 = 5,005.86 : x
  2. Step 2: Convert to fraction form
    13,317.66/19,986.48 = 5,005.86/x
  3. Step 3: Cross multiply
    13,317.66x = 19,986.48 × 5,005.86
  4. Step 4: Simplify right side
    13,317.66x = 100,049,520.77
  5. Step 5: Solve for x
    x = 100,049,520.77/13,317.66
  6. Step 6: Final answer
    x = 7,512.55

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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.