Home / 17,115.36-25,630.20-10,856.40

Finding the Fourth Proportional to 17,115.36, 25,630.20 and 10,856.40

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Solution

The fourth proportional to 17,115.36, 25,630.20 and 10,856.40 is: 16,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.36 : 25,630.20 = 10,856.40 : x
  2. Step 2: Convert to fraction form
    17,115.36/25,630.20 = 10,856.40/x
  3. Step 3: Cross multiply
    17,115.36x = 25,630.20 × 10,856.40
  4. Step 4: Simplify right side
    17,115.36x = 278,251,703.28
  5. Step 5: Solve for x
    x = 278,251,703.28/17,115.36
  6. Step 6: Final answer
    x = 16,257.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.