Home / 13,470.54-20,192.85-6,899.82

Finding the Fourth Proportional to 13,470.54, 20,192.85 and 6,899.82

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Solution

The fourth proportional to 13,470.54, 20,192.85 and 6,899.82 is: 10,343.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.54 : 20,192.85 = 6,899.82 : x
  2. Step 2: Convert to fraction form
    13,470.54/20,192.85 = 6,899.82/x
  3. Step 3: Cross multiply
    13,470.54x = 20,192.85 × 6,899.82
  4. Step 4: Simplify right side
    13,470.54x = 139,327,030.29
  5. Step 5: Solve for x
    x = 139,327,030.29/13,470.54
  6. Step 6: Final answer
    x = 10,343.09

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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.