Home / 19,480.34-26,904.66-13,181.78

Finding the Fourth Proportional to 19,480.34, 26,904.66 and 13,181.78

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Solution

The fourth proportional to 19,480.34, 26,904.66 and 13,181.78 is: 18,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.34 : 26,904.66 = 13,181.78 : x
  2. Step 2: Convert to fraction form
    19,480.34/26,904.66 = 13,181.78/x
  3. Step 3: Cross multiply
    19,480.34x = 26,904.66 × 13,181.78
  4. Step 4: Simplify right side
    19,480.34x = 354,651,309.09
  5. Step 5: Solve for x
    x = 354,651,309.09/19,480.34
  6. Step 6: Final answer
    x = 18,205.60

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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.