Home / 13,755.96-20,635.56-10,315.08

Finding the Fourth Proportional to 13,755.96, 20,635.56 and 10,315.08

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Solution

The fourth proportional to 13,755.96, 20,635.56 and 10,315.08 is: 15,473.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.96 : 20,635.56 = 10,315.08 : x
  2. Step 2: Convert to fraction form
    13,755.96/20,635.56 = 10,315.08/x
  3. Step 3: Cross multiply
    13,755.96x = 20,635.56 × 10,315.08
  4. Step 4: Simplify right side
    13,755.96x = 212,857,452.24
  5. Step 5: Solve for x
    x = 212,857,452.24/13,755.96
  6. Step 6: Final answer
    x = 15,473.83

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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.