Home / 13,524.13-20,255.94-7,818.10

Finding the Fourth Proportional to 13,524.13, 20,255.94 and 7,818.10

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Solution

The fourth proportional to 13,524.13, 20,255.94 and 7,818.10 is: 11,709.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.13 : 20,255.94 = 7,818.10 : x
  2. Step 2: Convert to fraction form
    13,524.13/20,255.94 = 7,818.10/x
  3. Step 3: Cross multiply
    13,524.13x = 20,255.94 × 7,818.10
  4. Step 4: Simplify right side
    13,524.13x = 158,362,908.99
  5. Step 5: Solve for x
    x = 158,362,908.99/13,524.13
  6. Step 6: Final answer
    x = 11,709.66

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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.