Home / 13,369.97-18,450.37-7,401.76

Finding the Fourth Proportional to 13,369.97, 18,450.37 and 7,401.76

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Solution

The fourth proportional to 13,369.97, 18,450.37 and 7,401.76 is: 10,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.97 : 18,450.37 = 7,401.76 : x
  2. Step 2: Convert to fraction form
    13,369.97/18,450.37 = 7,401.76/x
  3. Step 3: Cross multiply
    13,369.97x = 18,450.37 × 7,401.76
  4. Step 4: Simplify right side
    13,369.97x = 136,565,210.65
  5. Step 5: Solve for x
    x = 136,565,210.65/13,369.97
  6. Step 6: Final answer
    x = 10,214.32

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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.