Home / 13,385.08-20,050.32-6,343.72

Finding the Fourth Proportional to 13,385.08, 20,050.32 and 6,343.72

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Solution

The fourth proportional to 13,385.08, 20,050.32 and 6,343.72 is: 9,502.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.08 : 20,050.32 = 6,343.72 : x
  2. Step 2: Convert to fraction form
    13,385.08/20,050.32 = 6,343.72/x
  3. Step 3: Cross multiply
    13,385.08x = 20,050.32 × 6,343.72
  4. Step 4: Simplify right side
    13,385.08x = 127,193,615.99
  5. Step 5: Solve for x
    x = 127,193,615.99/13,385.08
  6. Step 6: Final answer
    x = 9,502.64

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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.