Home / 18,741.35-25,863.08-10,785.12

Finding the Fourth Proportional to 18,741.35, 25,863.08 and 10,785.12

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Solution

The fourth proportional to 18,741.35, 25,863.08 and 10,785.12 is: 14,883.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.35 : 25,863.08 = 10,785.12 : x
  2. Step 2: Convert to fraction form
    18,741.35/25,863.08 = 10,785.12/x
  3. Step 3: Cross multiply
    18,741.35x = 25,863.08 × 10,785.12
  4. Step 4: Simplify right side
    18,741.35x = 278,936,594.84
  5. Step 5: Solve for x
    x = 278,936,594.84/18,741.35
  6. Step 6: Final answer
    x = 14,883.48

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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.