Home / 11,913.99-17,858.68-5,669.49

Finding the Fourth Proportional to 11,913.99, 17,858.68 and 5,669.49

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Solution

The fourth proportional to 11,913.99, 17,858.68 and 5,669.49 is: 8,498.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.99 : 17,858.68 = 5,669.49 : x
  2. Step 2: Convert to fraction form
    11,913.99/17,858.68 = 5,669.49/x
  3. Step 3: Cross multiply
    11,913.99x = 17,858.68 × 5,669.49
  4. Step 4: Simplify right side
    11,913.99x = 101,249,660.47
  5. Step 5: Solve for x
    x = 101,249,660.47/11,913.99
  6. Step 6: Final answer
    x = 8,498.39

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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.