Home / 7,929.72-11,895.08-2,664.32

Finding the Fourth Proportional to 7,929.72, 11,895.08 and 2,664.32

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Solution

The fourth proportional to 7,929.72, 11,895.08 and 2,664.32 is: 3,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.72 : 11,895.08 = 2,664.32 : x
  2. Step 2: Convert to fraction form
    7,929.72/11,895.08 = 2,664.32/x
  3. Step 3: Cross multiply
    7,929.72x = 11,895.08 × 2,664.32
  4. Step 4: Simplify right side
    7,929.72x = 31,692,299.55
  5. Step 5: Solve for x
    x = 31,692,299.55/7,929.72
  6. Step 6: Final answer
    x = 3,996.65

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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.