Home / 12,201.08-18,302.76-3,435.98

Finding the Fourth Proportional to 12,201.08, 18,302.76 and 3,435.98

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Solution

The fourth proportional to 12,201.08, 18,302.76 and 3,435.98 is: 5,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.08 : 18,302.76 = 3,435.98 : x
  2. Step 2: Convert to fraction form
    12,201.08/18,302.76 = 3,435.98/x
  3. Step 3: Cross multiply
    12,201.08x = 18,302.76 × 3,435.98
  4. Step 4: Simplify right side
    12,201.08x = 62,887,825.79
  5. Step 5: Solve for x
    x = 62,887,825.79/12,201.08
  6. Step 6: Final answer
    x = 5,154.29

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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.