Home / 18,393.35-25,390.45-12,433.10

Finding the Fourth Proportional to 18,393.35, 25,390.45 and 12,433.10

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Solution

The fourth proportional to 18,393.35, 25,390.45 and 12,433.10 is: 17,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.35 : 25,390.45 = 12,433.10 : x
  2. Step 2: Convert to fraction form
    18,393.35/25,390.45 = 12,433.10/x
  3. Step 3: Cross multiply
    18,393.35x = 25,390.45 × 12,433.10
  4. Step 4: Simplify right side
    18,393.35x = 315,681,876.94
  5. Step 5: Solve for x
    x = 315,681,876.94/18,393.35
  6. Step 6: Final answer
    x = 17,162.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.