Home / 13,569.71-20,357.49-4,209.54

Finding the Fourth Proportional to 13,569.71, 20,357.49 and 4,209.54

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Solution

The fourth proportional to 13,569.71, 20,357.49 and 4,209.54 is: 6,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.71 : 20,357.49 = 4,209.54 : x
  2. Step 2: Convert to fraction form
    13,569.71/20,357.49 = 4,209.54/x
  3. Step 3: Cross multiply
    13,569.71x = 20,357.49 × 4,209.54
  4. Step 4: Simplify right side
    13,569.71x = 85,695,668.45
  5. Step 5: Solve for x
    x = 85,695,668.45/13,569.71
  6. Step 6: Final answer
    x = 6,315.22

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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.