Home / 13,370.67-18,451.26-7,401.99

Finding the Fourth Proportional to 13,370.67, 18,451.26 and 7,401.99

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Solution

The fourth proportional to 13,370.67, 18,451.26 and 7,401.99 is: 10,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.67 : 18,451.26 = 7,401.99 : x
  2. Step 2: Convert to fraction form
    13,370.67/18,451.26 = 7,401.99/x
  3. Step 3: Cross multiply
    13,370.67x = 18,451.26 × 7,401.99
  4. Step 4: Simplify right side
    13,370.67x = 136,576,042.01
  5. Step 5: Solve for x
    x = 136,576,042.01/13,370.67
  6. Step 6: Final answer
    x = 10,214.60

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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.