Home / 7,929.36-11,895.48-3,546.72

Finding the Fourth Proportional to 7,929.36, 11,895.48 and 3,546.72

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Solution

The fourth proportional to 7,929.36, 11,895.48 and 3,546.72 is: 5,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.36 : 11,895.48 = 3,546.72 : x
  2. Step 2: Convert to fraction form
    7,929.36/11,895.48 = 3,546.72/x
  3. Step 3: Cross multiply
    7,929.36x = 11,895.48 × 3,546.72
  4. Step 4: Simplify right side
    7,929.36x = 42,189,936.83
  5. Step 5: Solve for x
    x = 42,189,936.83/7,929.36
  6. Step 6: Final answer
    x = 5,320.72

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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.