Home / 13,812.30-20,719.17-3,953.03

Finding the Fourth Proportional to 13,812.30, 20,719.17 and 3,953.03

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Solution

The fourth proportional to 13,812.30, 20,719.17 and 3,953.03 is: 5,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.30 : 20,719.17 = 3,953.03 : x
  2. Step 2: Convert to fraction form
    13,812.30/20,719.17 = 3,953.03/x
  3. Step 3: Cross multiply
    13,812.30x = 20,719.17 × 3,953.03
  4. Step 4: Simplify right side
    13,812.30x = 81,903,500.59
  5. Step 5: Solve for x
    x = 81,903,500.59/13,812.30
  6. Step 6: Final answer
    x = 5,929.75

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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.