Home / 7,135.51-10,689.41-5,257.99

Finding the Fourth Proportional to 7,135.51, 10,689.41 and 5,257.99

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Solution

The fourth proportional to 7,135.51, 10,689.41 and 5,257.99 is: 7,876.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.51 : 10,689.41 = 5,257.99 : x
  2. Step 2: Convert to fraction form
    7,135.51/10,689.41 = 5,257.99/x
  3. Step 3: Cross multiply
    7,135.51x = 10,689.41 × 5,257.99
  4. Step 4: Simplify right side
    7,135.51x = 56,204,792.54
  5. Step 5: Solve for x
    x = 56,204,792.54/7,135.51
  6. Step 6: Final answer
    x = 7,876.78

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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.