Home / 12,076.60-18,116.70-4,284.76

Finding the Fourth Proportional to 12,076.60, 18,116.70 and 4,284.76

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Solution

The fourth proportional to 12,076.60, 18,116.70 and 4,284.76 is: 6,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.60 : 18,116.70 = 4,284.76 : x
  2. Step 2: Convert to fraction form
    12,076.60/18,116.70 = 4,284.76/x
  3. Step 3: Cross multiply
    12,076.60x = 18,116.70 × 4,284.76
  4. Step 4: Simplify right side
    12,076.60x = 77,625,711.49
  5. Step 5: Solve for x
    x = 77,625,711.49/12,076.60
  6. Step 6: Final answer
    x = 6,427.78

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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.