Home / 12,409.08-18,610.86-3,641.64

Finding the Fourth Proportional to 12,409.08, 18,610.86 and 3,641.64

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Solution

The fourth proportional to 12,409.08, 18,610.86 and 3,641.64 is: 5,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.08 : 18,610.86 = 3,641.64 : x
  2. Step 2: Convert to fraction form
    12,409.08/18,610.86 = 3,641.64/x
  3. Step 3: Cross multiply
    12,409.08x = 18,610.86 × 3,641.64
  4. Step 4: Simplify right side
    12,409.08x = 67,774,052.21
  5. Step 5: Solve for x
    x = 67,774,052.21/12,409.08
  6. Step 6: Final answer
    x = 5,461.65

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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.