Home / 13,370.23-18,451.47-7,401.79

Finding the Fourth Proportional to 13,370.23, 18,451.47 and 7,401.79

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Solution

The fourth proportional to 13,370.23, 18,451.47 and 7,401.79 is: 10,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.23 : 18,451.47 = 7,401.79 : x
  2. Step 2: Convert to fraction form
    13,370.23/18,451.47 = 7,401.79/x
  3. Step 3: Cross multiply
    13,370.23x = 18,451.47 × 7,401.79
  4. Step 4: Simplify right side
    13,370.23x = 136,573,906.13
  5. Step 5: Solve for x
    x = 136,573,906.13/13,370.23
  6. Step 6: Final answer
    x = 10,214.78

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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.