Home / 10,388.05-15,569.10-5,195.41

Finding the Fourth Proportional to 10,388.05, 15,569.10 and 5,195.41

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Solution

The fourth proportional to 10,388.05, 15,569.10 and 5,195.41 is: 7,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.05 : 15,569.10 = 5,195.41 : x
  2. Step 2: Convert to fraction form
    10,388.05/15,569.10 = 5,195.41/x
  3. Step 3: Cross multiply
    10,388.05x = 15,569.10 × 5,195.41
  4. Step 4: Simplify right side
    10,388.05x = 80,887,857.83
  5. Step 5: Solve for x
    x = 80,887,857.83/10,388.05
  6. Step 6: Final answer
    x = 7,786.63

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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.