Home / 13,379.79-18,464.62-7,411.33

Finding the Fourth Proportional to 13,379.79, 18,464.62 and 7,411.33

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Solution

The fourth proportional to 13,379.79, 18,464.62 and 7,411.33 is: 10,227.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.79 : 18,464.62 = 7,411.33 : x
  2. Step 2: Convert to fraction form
    13,379.79/18,464.62 = 7,411.33/x
  3. Step 3: Cross multiply
    13,379.79x = 18,464.62 × 7,411.33
  4. Step 4: Simplify right side
    13,379.79x = 136,847,392.14
  5. Step 5: Solve for x
    x = 136,847,392.14/13,379.79
  6. Step 6: Final answer
    x = 10,227.92

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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.