Home / 13,370.67-18,451.62-7,402.43

Finding the Fourth Proportional to 13,370.67, 18,451.62 and 7,402.43

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Solution

The fourth proportional to 13,370.67, 18,451.62 and 7,402.43 is: 10,215.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.67 : 18,451.62 = 7,402.43 : x
  2. Step 2: Convert to fraction form
    13,370.67/18,451.62 = 7,402.43/x
  3. Step 3: Cross multiply
    13,370.67x = 18,451.62 × 7,402.43
  4. Step 4: Simplify right side
    13,370.67x = 136,586,825.44
  5. Step 5: Solve for x
    x = 136,586,825.44/13,370.67
  6. Step 6: Final answer
    x = 10,215.41

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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.