Home / 18,539.76-25,564.50-11,817.84

Finding the Fourth Proportional to 18,539.76, 25,564.50 and 11,817.84

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Solution

The fourth proportional to 18,539.76, 25,564.50 and 11,817.84 is: 16,295.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.76 : 25,564.50 = 11,817.84 : x
  2. Step 2: Convert to fraction form
    18,539.76/25,564.50 = 11,817.84/x
  3. Step 3: Cross multiply
    18,539.76x = 25,564.50 × 11,817.84
  4. Step 4: Simplify right side
    18,539.76x = 302,117,170.68
  5. Step 5: Solve for x
    x = 302,117,170.68/18,539.76
  6. Step 6: Final answer
    x = 16,295.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.