Home / 12,622.94-18,946.10-6,387.37

Finding the Fourth Proportional to 12,622.94, 18,946.10 and 6,387.37

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Solution

The fourth proportional to 12,622.94, 18,946.10 and 6,387.37 is: 9,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.94 : 18,946.10 = 6,387.37 : x
  2. Step 2: Convert to fraction form
    12,622.94/18,946.10 = 6,387.37/x
  3. Step 3: Cross multiply
    12,622.94x = 18,946.10 × 6,387.37
  4. Step 4: Simplify right side
    12,622.94x = 121,015,750.76
  5. Step 5: Solve for x
    x = 121,015,750.76/12,622.94
  6. Step 6: Final answer
    x = 9,586.97

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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.