Home / 14,418.99-21,615.60-6,918.42

Finding the Fourth Proportional to 14,418.99, 21,615.60 and 6,918.42

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Solution

The fourth proportional to 14,418.99, 21,615.60 and 6,918.42 is: 10,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.99 : 21,615.60 = 6,918.42 : x
  2. Step 2: Convert to fraction form
    14,418.99/21,615.60 = 6,918.42/x
  3. Step 3: Cross multiply
    14,418.99x = 21,615.60 × 6,918.42
  4. Step 4: Simplify right side
    14,418.99x = 149,545,799.35
  5. Step 5: Solve for x
    x = 149,545,799.35/14,418.99
  6. Step 6: Final answer
    x = 10,371.45

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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.