Home / 13,371.29-18,450.47-7,402.80

Finding the Fourth Proportional to 13,371.29, 18,450.47 and 7,402.80

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Solution

The fourth proportional to 13,371.29, 18,450.47 and 7,402.80 is: 10,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.29 : 18,450.47 = 7,402.80 : x
  2. Step 2: Convert to fraction form
    13,371.29/18,450.47 = 7,402.80/x
  3. Step 3: Cross multiply
    13,371.29x = 18,450.47 × 7,402.80
  4. Step 4: Simplify right side
    13,371.29x = 136,585,157.82
  5. Step 5: Solve for x
    x = 136,585,157.82/13,371.29
  6. Step 6: Final answer
    x = 10,214.81

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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.