Home / 13,120.26-19,680.81-4,354.92

Finding the Fourth Proportional to 13,120.26, 19,680.81 and 4,354.92

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Solution

The fourth proportional to 13,120.26, 19,680.81 and 4,354.92 is: 6,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.26 : 19,680.81 = 4,354.92 : x
  2. Step 2: Convert to fraction form
    13,120.26/19,680.81 = 4,354.92/x
  3. Step 3: Cross multiply
    13,120.26x = 19,680.81 × 4,354.92
  4. Step 4: Simplify right side
    13,120.26x = 85,708,353.09
  5. Step 5: Solve for x
    x = 85,708,353.09/13,120.26
  6. Step 6: Final answer
    x = 6,532.52

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1.5x scale

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.