Home / 11,178.60-16,765.56-3,386.76

Finding the Fourth Proportional to 11,178.60, 16,765.56 and 3,386.76

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Solution

The fourth proportional to 11,178.60, 16,765.56 and 3,386.76 is: 5,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.60 : 16,765.56 = 3,386.76 : x
  2. Step 2: Convert to fraction form
    11,178.60/16,765.56 = 3,386.76/x
  3. Step 3: Cross multiply
    11,178.60x = 16,765.56 × 3,386.76
  4. Step 4: Simplify right side
    11,178.60x = 56,780,927.99
  5. Step 5: Solve for x
    x = 56,780,927.99/11,178.60
  6. Step 6: Final answer
    x = 5,079.43

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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.