Home / 10,286.88-14,195.90-5,571.16

Finding the Fourth Proportional to 10,286.88, 14,195.90 and 5,571.16

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Solution

The fourth proportional to 10,286.88, 14,195.90 and 5,571.16 is: 7,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.88 : 14,195.90 = 5,571.16 : x
  2. Step 2: Convert to fraction form
    10,286.88/14,195.90 = 5,571.16/x
  3. Step 3: Cross multiply
    10,286.88x = 14,195.90 × 5,571.16
  4. Step 4: Simplify right side
    10,286.88x = 79,087,630.24
  5. Step 5: Solve for x
    x = 79,087,630.24/10,286.88
  6. Step 6: Final answer
    x = 7,688.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.