Home / 13,470.32-20,196.08-5,672.72

Finding the Fourth Proportional to 13,470.32, 20,196.08 and 5,672.72

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Solution

The fourth proportional to 13,470.32, 20,196.08 and 5,672.72 is: 8,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.32 : 20,196.08 = 5,672.72 : x
  2. Step 2: Convert to fraction form
    13,470.32/20,196.08 = 5,672.72/x
  3. Step 3: Cross multiply
    13,470.32x = 20,196.08 × 5,672.72
  4. Step 4: Simplify right side
    13,470.32x = 114,566,706.94
  5. Step 5: Solve for x
    x = 114,566,706.94/13,470.32
  6. Step 6: Final answer
    x = 8,505.12

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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.