Home / 13,369.08-18,448.92-7,400.73

Finding the Fourth Proportional to 13,369.08, 18,448.92 and 7,400.73

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Solution

The fourth proportional to 13,369.08, 18,448.92 and 7,400.73 is: 10,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.08 : 18,448.92 = 7,400.73 : x
  2. Step 2: Convert to fraction form
    13,369.08/18,448.92 = 7,400.73/x
  3. Step 3: Cross multiply
    13,369.08x = 18,448.92 × 7,400.73
  4. Step 4: Simplify right side
    13,369.08x = 136,535,475.71
  5. Step 5: Solve for x
    x = 136,535,475.71/13,369.08
  6. Step 6: Final answer
    x = 10,212.78

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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.