Home / 13,540.35-20,301.26-7,216.17

Finding the Fourth Proportional to 13,540.35, 20,301.26 and 7,216.17

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Solution

The fourth proportional to 13,540.35, 20,301.26 and 7,216.17 is: 10,819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.35 : 20,301.26 = 7,216.17 : x
  2. Step 2: Convert to fraction form
    13,540.35/20,301.26 = 7,216.17/x
  3. Step 3: Cross multiply
    13,540.35x = 20,301.26 × 7,216.17
  4. Step 4: Simplify right side
    13,540.35x = 146,497,307.29
  5. Step 5: Solve for x
    x = 146,497,307.29/13,540.35
  6. Step 6: Final answer
    x = 10,819.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.