Home / 10,517.36-15,775.89-2,619.93

Finding the Fourth Proportional to 10,517.36, 15,775.89 and 2,619.93

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Solution

The fourth proportional to 10,517.36, 15,775.89 and 2,619.93 is: 3,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.36 : 15,775.89 = 2,619.93 : x
  2. Step 2: Convert to fraction form
    10,517.36/15,775.89 = 2,619.93/x
  3. Step 3: Cross multiply
    10,517.36x = 15,775.89 × 2,619.93
  4. Step 4: Simplify right side
    10,517.36x = 41,331,727.49
  5. Step 5: Solve for x
    x = 41,331,727.49/10,517.36
  6. Step 6: Final answer
    x = 3,929.86

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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.