Home / 13,923.30-19,212.39-7,955.36

Finding the Fourth Proportional to 13,923.30, 19,212.39 and 7,955.36

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Solution

The fourth proportional to 13,923.30, 19,212.39 and 7,955.36 is: 10,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.30 : 19,212.39 = 7,955.36 : x
  2. Step 2: Convert to fraction form
    13,923.30/19,212.39 = 7,955.36/x
  3. Step 3: Cross multiply
    13,923.30x = 19,212.39 × 7,955.36
  4. Step 4: Simplify right side
    13,923.30x = 152,841,410.99
  5. Step 5: Solve for x
    x = 152,841,410.99/13,923.30
  6. Step 6: Final answer
    x = 10,977.38

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Double scale
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Similar ratio
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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.