Home / 13,713.45-18,924.57-7,425.81

Finding the Fourth Proportional to 13,713.45, 18,924.57 and 7,425.81

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Solution

The fourth proportional to 13,713.45, 18,924.57 and 7,425.81 is: 10,247.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.45 : 18,924.57 = 7,425.81 : x
  2. Step 2: Convert to fraction form
    13,713.45/18,924.57 = 7,425.81/x
  3. Step 3: Cross multiply
    13,713.45x = 18,924.57 × 7,425.81
  4. Step 4: Simplify right side
    13,713.45x = 140,530,261.15
  5. Step 5: Solve for x
    x = 140,530,261.15/13,713.45
  6. Step 6: Final answer
    x = 10,247.62

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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.