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Finding the Fourth Proportional to 13,713.08, 18,924.03 and 7,425.45

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Solution

The fourth proportional to 13,713.08, 18,924.03 and 7,425.45 is: 10,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.08 : 18,924.03 = 7,425.45 : x
  2. Step 2: Convert to fraction form
    13,713.08/18,924.03 = 7,425.45/x
  3. Step 3: Cross multiply
    13,713.08x = 18,924.03 × 7,425.45
  4. Step 4: Simplify right side
    13,713.08x = 140,519,438.56
  5. Step 5: Solve for x
    x = 140,519,438.56/13,713.08
  6. Step 6: Final answer
    x = 10,247.11

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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.