Home / 12,141.08-18,215.96-4,750.83

Finding the Fourth Proportional to 12,141.08, 18,215.96 and 4,750.83

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Solution

The fourth proportional to 12,141.08, 18,215.96 and 4,750.83 is: 7,127.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.08 : 18,215.96 = 4,750.83 : x
  2. Step 2: Convert to fraction form
    12,141.08/18,215.96 = 4,750.83/x
  3. Step 3: Cross multiply
    12,141.08x = 18,215.96 × 4,750.83
  4. Step 4: Simplify right side
    12,141.08x = 86,540,905.49
  5. Step 5: Solve for x
    x = 86,540,905.49/12,141.08
  6. Step 6: Final answer
    x = 7,127.94

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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.