Home / 12,125.76-18,187.23-4,226.92

Finding the Fourth Proportional to 12,125.76, 18,187.23 and 4,226.92

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Solution

The fourth proportional to 12,125.76, 18,187.23 and 4,226.92 is: 6,339.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.76 : 18,187.23 = 4,226.92 : x
  2. Step 2: Convert to fraction form
    12,125.76/18,187.23 = 4,226.92/x
  3. Step 3: Cross multiply
    12,125.76x = 18,187.23 × 4,226.92
  4. Step 4: Simplify right side
    12,125.76x = 76,875,966.23
  5. Step 5: Solve for x
    x = 76,875,966.23/12,125.76
  6. Step 6: Final answer
    x = 6,339.89

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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.