Home / 12,806.60-19,180.35-12,363.32

Finding the Fourth Proportional to 12,806.60, 19,180.35 and 12,363.32

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Solution

The fourth proportional to 12,806.60, 19,180.35 and 12,363.32 is: 18,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.60 : 19,180.35 = 12,363.32 : x
  2. Step 2: Convert to fraction form
    12,806.60/19,180.35 = 12,363.32/x
  3. Step 3: Cross multiply
    12,806.60x = 19,180.35 × 12,363.32
  4. Step 4: Simplify right side
    12,806.60x = 237,132,708.86
  5. Step 5: Solve for x
    x = 237,132,708.86/12,806.60
  6. Step 6: Final answer
    x = 18,516.45

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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.