Home / 13,581.68-20,317.84-11,753.10

Finding the Fourth Proportional to 13,581.68, 20,317.84 and 11,753.10

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Solution

The fourth proportional to 13,581.68, 20,317.84 and 11,753.10 is: 17,582.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.68 : 20,317.84 = 11,753.10 : x
  2. Step 2: Convert to fraction form
    13,581.68/20,317.84 = 11,753.10/x
  3. Step 3: Cross multiply
    13,581.68x = 20,317.84 × 11,753.10
  4. Step 4: Simplify right side
    13,581.68x = 238,797,575.92
  5. Step 5: Solve for x
    x = 238,797,575.92/13,581.68
  6. Step 6: Final answer
    x = 17,582.34

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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.