Home / 12,864.97-19,288.34-4,960.79

Finding the Fourth Proportional to 12,864.97, 19,288.34 and 4,960.79

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Solution

The fourth proportional to 12,864.97, 19,288.34 and 4,960.79 is: 7,437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.97 : 19,288.34 = 4,960.79 : x
  2. Step 2: Convert to fraction form
    12,864.97/19,288.34 = 4,960.79/x
  3. Step 3: Cross multiply
    12,864.97x = 19,288.34 × 4,960.79
  4. Step 4: Simplify right side
    12,864.97x = 95,685,301.55
  5. Step 5: Solve for x
    x = 95,685,301.55/12,864.97
  6. Step 6: Final answer
    x = 7,437.66

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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.