Home / 13,370.24-18,449.70-7,401.62

Finding the Fourth Proportional to 13,370.24, 18,449.70 and 7,401.62

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Solution

The fourth proportional to 13,370.24, 18,449.70 and 7,401.62 is: 10,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.24 : 18,449.70 = 7,401.62 : x
  2. Step 2: Convert to fraction form
    13,370.24/18,449.70 = 7,401.62/x
  3. Step 3: Cross multiply
    13,370.24x = 18,449.70 × 7,401.62
  4. Step 4: Simplify right side
    13,370.24x = 136,557,668.51
  5. Step 5: Solve for x
    x = 136,557,668.51/13,370.24
  6. Step 6: Final answer
    x = 10,213.55

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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.