Home / 18,570.30-25,618.32-12,207.48

Finding the Fourth Proportional to 18,570.30, 25,618.32 and 12,207.48

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Solution

The fourth proportional to 18,570.30, 25,618.32 and 12,207.48 is: 16,840.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.30 : 25,618.32 = 12,207.48 : x
  2. Step 2: Convert to fraction form
    18,570.30/25,618.32 = 12,207.48/x
  3. Step 3: Cross multiply
    18,570.30x = 25,618.32 × 12,207.48
  4. Step 4: Simplify right side
    18,570.30x = 312,735,129.03
  5. Step 5: Solve for x
    x = 312,735,129.03/18,570.30
  6. Step 6: Final answer
    x = 16,840.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.