Home / 12,877.70-19,313.30-4,108.10

Finding the Fourth Proportional to 12,877.70, 19,313.30 and 4,108.10

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Solution

The fourth proportional to 12,877.70, 19,313.30 and 4,108.10 is: 6,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.70 : 19,313.30 = 4,108.10 : x
  2. Step 2: Convert to fraction form
    12,877.70/19,313.30 = 4,108.10/x
  3. Step 3: Cross multiply
    12,877.70x = 19,313.30 × 4,108.10
  4. Step 4: Simplify right side
    12,877.70x = 79,340,967.73
  5. Step 5: Solve for x
    x = 79,340,967.73/12,877.70
  6. Step 6: Final answer
    x = 6,161.11

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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.