Home / 12,076.38-18,108.09-4,284.18

Finding the Fourth Proportional to 12,076.38, 18,108.09 and 4,284.18

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Solution

The fourth proportional to 12,076.38, 18,108.09 and 4,284.18 is: 6,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.38 : 18,108.09 = 4,284.18 : x
  2. Step 2: Convert to fraction form
    12,076.38/18,108.09 = 4,284.18/x
  3. Step 3: Cross multiply
    12,076.38x = 18,108.09 × 4,284.18
  4. Step 4: Simplify right side
    12,076.38x = 77,578,317.02
  5. Step 5: Solve for x
    x = 77,578,317.02/12,076.38
  6. Step 6: Final answer
    x = 6,423.97

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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.