Home / 12,278.87-16,944.96-6,973.79

Finding the Fourth Proportional to 12,278.87, 16,944.96 and 6,973.79

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Solution

The fourth proportional to 12,278.87, 16,944.96 and 6,973.79 is: 9,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.87 : 16,944.96 = 6,973.79 : x
  2. Step 2: Convert to fraction form
    12,278.87/16,944.96 = 6,973.79/x
  3. Step 3: Cross multiply
    12,278.87x = 16,944.96 × 6,973.79
  4. Step 4: Simplify right side
    12,278.87x = 118,170,592.60
  5. Step 5: Solve for x
    x = 118,170,592.60/12,278.87
  6. Step 6: Final answer
    x = 9,623.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.