Home / 18,741.15-25,863.75-10,784.57

Finding the Fourth Proportional to 18,741.15, 25,863.75 and 10,784.57

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Solution

The fourth proportional to 18,741.15, 25,863.75 and 10,784.57 is: 14,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.15 : 25,863.75 = 10,784.57 : x
  2. Step 2: Convert to fraction form
    18,741.15/25,863.75 = 10,784.57/x
  3. Step 3: Cross multiply
    18,741.15x = 25,863.75 × 10,784.57
  4. Step 4: Simplify right side
    18,741.15x = 278,929,293.02
  5. Step 5: Solve for x
    x = 278,929,293.02/18,741.15
  6. Step 6: Final answer
    x = 14,883.25

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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.