Home / 12,201.70-18,300.92-3,437.30

Finding the Fourth Proportional to 12,201.70, 18,300.92 and 3,437.30

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Solution

The fourth proportional to 12,201.70, 18,300.92 and 3,437.30 is: 5,155.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.70 : 18,300.92 = 3,437.30 : x
  2. Step 2: Convert to fraction form
    12,201.70/18,300.92 = 3,437.30/x
  3. Step 3: Cross multiply
    12,201.70x = 18,300.92 × 3,437.30
  4. Step 4: Simplify right side
    12,201.70x = 62,905,660.81
  5. Step 5: Solve for x
    x = 62,905,660.81/12,201.70
  6. Step 6: Final answer
    x = 5,155.48

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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.