Home / 12,935.54-19,430.94-9,261.38

Finding the Fourth Proportional to 12,935.54, 19,430.94 and 9,261.38

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Solution

The fourth proportional to 12,935.54, 19,430.94 and 9,261.38 is: 13,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.54 : 19,430.94 = 9,261.38 : x
  2. Step 2: Convert to fraction form
    12,935.54/19,430.94 = 9,261.38/x
  3. Step 3: Cross multiply
    12,935.54x = 19,430.94 × 9,261.38
  4. Step 4: Simplify right side
    12,935.54x = 179,957,221.94
  5. Step 5: Solve for x
    x = 179,957,221.94/12,935.54
  6. Step 6: Final answer
    x = 13,911.85

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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.