Home / 13,921.51-20,857.14-9,230.41

Finding the Fourth Proportional to 13,921.51, 20,857.14 and 9,230.41

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Solution

The fourth proportional to 13,921.51, 20,857.14 and 9,230.41 is: 13,828.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.51 : 20,857.14 = 9,230.41 : x
  2. Step 2: Convert to fraction form
    13,921.51/20,857.14 = 9,230.41/x
  3. Step 3: Cross multiply
    13,921.51x = 20,857.14 × 9,230.41
  4. Step 4: Simplify right side
    13,921.51x = 192,519,953.63
  5. Step 5: Solve for x
    x = 192,519,953.63/13,921.51
  6. Step 6: Final answer
    x = 13,828.96

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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.