Home / 12,729.77-19,094.45-3,965.16

Finding the Fourth Proportional to 12,729.77, 19,094.45 and 3,965.16

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Solution

The fourth proportional to 12,729.77, 19,094.45 and 3,965.16 is: 5,947.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.77 : 19,094.45 = 3,965.16 : x
  2. Step 2: Convert to fraction form
    12,729.77/19,094.45 = 3,965.16/x
  3. Step 3: Cross multiply
    12,729.77x = 19,094.45 × 3,965.16
  4. Step 4: Simplify right side
    12,729.77x = 75,712,529.54
  5. Step 5: Solve for x
    x = 75,712,529.54/12,729.77
  6. Step 6: Final answer
    x = 5,947.68

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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.