Home / 13,582.63-20,371.76-3,719.60

Finding the Fourth Proportional to 13,582.63, 20,371.76 and 3,719.60

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Solution

The fourth proportional to 13,582.63, 20,371.76 and 3,719.60 is: 5,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.63 : 20,371.76 = 3,719.60 : x
  2. Step 2: Convert to fraction form
    13,582.63/20,371.76 = 3,719.60/x
  3. Step 3: Cross multiply
    13,582.63x = 20,371.76 × 3,719.60
  4. Step 4: Simplify right side
    13,582.63x = 75,774,798.50
  5. Step 5: Solve for x
    x = 75,774,798.50/13,582.63
  6. Step 6: Final answer
    x = 5,578.80

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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.