Home / 12,124.76-18,185.73-4,225.92

Finding the Fourth Proportional to 12,124.76, 18,185.73 and 4,225.92

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Solution

The fourth proportional to 12,124.76, 18,185.73 and 4,225.92 is: 6,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.76 : 18,185.73 = 4,225.92 : x
  2. Step 2: Convert to fraction form
    12,124.76/18,185.73 = 4,225.92/x
  3. Step 3: Cross multiply
    12,124.76x = 18,185.73 × 4,225.92
  4. Step 4: Simplify right side
    12,124.76x = 76,851,440.12
  5. Step 5: Solve for x
    x = 76,851,440.12/12,124.76
  6. Step 6: Final answer
    x = 6,338.39

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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.