Home / 10,145.09-13,995.38-6,366.38

Finding the Fourth Proportional to 10,145.09, 13,995.38 and 6,366.38

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Solution

The fourth proportional to 10,145.09, 13,995.38 and 6,366.38 is: 8,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.09 : 13,995.38 = 6,366.38 : x
  2. Step 2: Convert to fraction form
    10,145.09/13,995.38 = 6,366.38/x
  3. Step 3: Cross multiply
    10,145.09x = 13,995.38 × 6,366.38
  4. Step 4: Simplify right side
    10,145.09x = 89,099,853.26
  5. Step 5: Solve for x
    x = 89,099,853.26/10,145.09
  6. Step 6: Final answer
    x = 8,782.56

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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.