Home / 12,433.10-18,630.20-7,806.38

Finding the Fourth Proportional to 12,433.10, 18,630.20 and 7,806.38

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Solution

The fourth proportional to 12,433.10, 18,630.20 and 7,806.38 is: 11,697.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,433.10 : 18,630.20 = 7,806.38 : x
  2. Step 2: Convert to fraction form
    12,433.10/18,630.20 = 7,806.38/x
  3. Step 3: Cross multiply
    12,433.10x = 18,630.20 × 7,806.38
  4. Step 4: Simplify right side
    12,433.10x = 145,434,347.04
  5. Step 5: Solve for x
    x = 145,434,347.04/12,433.10
  6. Step 6: Final answer
    x = 11,697.36

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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.