Home / 12,397.10-18,599.70-4,076.78

Finding the Fourth Proportional to 12,397.10, 18,599.70 and 4,076.78

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Solution

The fourth proportional to 12,397.10, 18,599.70 and 4,076.78 is: 6,116.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.10 : 18,599.70 = 4,076.78 : x
  2. Step 2: Convert to fraction form
    12,397.10/18,599.70 = 4,076.78/x
  3. Step 3: Cross multiply
    12,397.10x = 18,599.70 × 4,076.78
  4. Step 4: Simplify right side
    12,397.10x = 75,826,884.97
  5. Step 5: Solve for x
    x = 75,826,884.97/12,397.10
  6. Step 6: Final answer
    x = 6,116.50

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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.