Home / 18,741.36-25,865.64-10,783.44

Finding the Fourth Proportional to 18,741.36, 25,865.64 and 10,783.44

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Solution

The fourth proportional to 18,741.36, 25,865.64 and 10,783.44 is: 14,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.36 : 25,865.64 = 10,783.44 : x
  2. Step 2: Convert to fraction form
    18,741.36/25,865.64 = 10,783.44/x
  3. Step 3: Cross multiply
    18,741.36x = 25,865.64 × 10,783.44
  4. Step 4: Simplify right side
    18,741.36x = 278,920,577.00
  5. Step 5: Solve for x
    x = 278,920,577.00/18,741.36
  6. Step 6: Final answer
    x = 14,882.62

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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.