Home / 15,675.36-21,660.02-11,658.42

Finding the Fourth Proportional to 15,675.36, 21,660.02 and 11,658.42

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Solution

The fourth proportional to 15,675.36, 21,660.02 and 11,658.42 is: 16,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.36 : 21,660.02 = 11,658.42 : x
  2. Step 2: Convert to fraction form
    15,675.36/21,660.02 = 11,658.42/x
  3. Step 3: Cross multiply
    15,675.36x = 21,660.02 × 11,658.42
  4. Step 4: Simplify right side
    15,675.36x = 252,521,610.37
  5. Step 5: Solve for x
    x = 252,521,610.37/15,675.36
  6. Step 6: Final answer
    x = 16,109.46

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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.