Home / 12,279.20-16,945.72-6,973.84

Finding the Fourth Proportional to 12,279.20, 16,945.72 and 6,973.84

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Solution

The fourth proportional to 12,279.20, 16,945.72 and 6,973.84 is: 9,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.20 : 16,945.72 = 6,973.84 : x
  2. Step 2: Convert to fraction form
    12,279.20/16,945.72 = 6,973.84/x
  3. Step 3: Cross multiply
    12,279.20x = 16,945.72 × 6,973.84
  4. Step 4: Simplify right side
    12,279.20x = 118,176,739.96
  5. Step 5: Solve for x
    x = 118,176,739.96/12,279.20
  6. Step 6: Final answer
    x = 9,624.14

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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.