Home / 10,570.70-15,857.10-3,908.95

Finding the Fourth Proportional to 10,570.70, 15,857.10 and 3,908.95

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Solution

The fourth proportional to 10,570.70, 15,857.10 and 3,908.95 is: 5,863.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,570.70 : 15,857.10 = 3,908.95 : x
  2. Step 2: Convert to fraction form
    10,570.70/15,857.10 = 3,908.95/x
  3. Step 3: Cross multiply
    10,570.70x = 15,857.10 × 3,908.95
  4. Step 4: Simplify right side
    10,570.70x = 61,984,571.40
  5. Step 5: Solve for x
    x = 61,984,571.40/10,570.70
  6. Step 6: Final answer
    x = 5,863.81

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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.