Home / 13,235.97-19,856.39-4,921.73

Finding the Fourth Proportional to 13,235.97, 19,856.39 and 4,921.73

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Solution

The fourth proportional to 13,235.97, 19,856.39 and 4,921.73 is: 7,383.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.97 : 19,856.39 = 4,921.73 : x
  2. Step 2: Convert to fraction form
    13,235.97/19,856.39 = 4,921.73/x
  3. Step 3: Cross multiply
    13,235.97x = 19,856.39 × 4,921.73
  4. Step 4: Simplify right side
    13,235.97x = 97,727,666.46
  5. Step 5: Solve for x
    x = 97,727,666.46/13,235.97
  6. Step 6: Final answer
    x = 7,383.49

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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.