Home / 10,117.91-15,176.87-3,540.51

Finding the Fourth Proportional to 10,117.91, 15,176.87 and 3,540.51

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Solution

The fourth proportional to 10,117.91, 15,176.87 and 3,540.51 is: 5,310.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.91 : 15,176.87 = 3,540.51 : x
  2. Step 2: Convert to fraction form
    10,117.91/15,176.87 = 3,540.51/x
  3. Step 3: Cross multiply
    10,117.91x = 15,176.87 × 3,540.51
  4. Step 4: Simplify right side
    10,117.91x = 53,733,855.58
  5. Step 5: Solve for x
    x = 53,733,855.58/10,117.91
  6. Step 6: Final answer
    x = 5,310.77

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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.