Home / 13,301.79-18,351.33-7,634.49

Finding the Fourth Proportional to 13,301.79, 18,351.33 and 7,634.49

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Solution

The fourth proportional to 13,301.79, 18,351.33 and 7,634.49 is: 10,532.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.79 : 18,351.33 = 7,634.49 : x
  2. Step 2: Convert to fraction form
    13,301.79/18,351.33 = 7,634.49/x
  3. Step 3: Cross multiply
    13,301.79x = 18,351.33 × 7,634.49
  4. Step 4: Simplify right side
    13,301.79x = 140,103,045.37
  5. Step 5: Solve for x
    x = 140,103,045.37/13,301.79
  6. Step 6: Final answer
    x = 10,532.65

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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.