Home / 13,566.86-20,343.91-5,250.79

Finding the Fourth Proportional to 13,566.86, 20,343.91 and 5,250.79

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Solution

The fourth proportional to 13,566.86, 20,343.91 and 5,250.79 is: 7,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.86 : 20,343.91 = 5,250.79 : x
  2. Step 2: Convert to fraction form
    13,566.86/20,343.91 = 5,250.79/x
  3. Step 3: Cross multiply
    13,566.86x = 20,343.91 × 5,250.79
  4. Step 4: Simplify right side
    13,566.86x = 106,821,599.19
  5. Step 5: Solve for x
    x = 106,821,599.19/13,566.86
  6. Step 6: Final answer
    x = 7,873.72

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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.