Home / 13,921.14-19,228.05-10,138.32

Finding the Fourth Proportional to 13,921.14, 19,228.05 and 10,138.32

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Solution

The fourth proportional to 13,921.14, 19,228.05 and 10,138.32 is: 14,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.14 : 19,228.05 = 10,138.32 : x
  2. Step 2: Convert to fraction form
    13,921.14/19,228.05 = 10,138.32/x
  3. Step 3: Cross multiply
    13,921.14x = 19,228.05 × 10,138.32
  4. Step 4: Simplify right side
    13,921.14x = 194,940,123.88
  5. Step 5: Solve for x
    x = 194,940,123.88/13,921.14
  6. Step 6: Final answer
    x = 14,003.17

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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.