Home / 15,658.85-21,596.65-13,766.42

Finding the Fourth Proportional to 15,658.85, 21,596.65 and 13,766.42

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Solution

The fourth proportional to 15,658.85, 21,596.65 and 13,766.42 is: 18,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658.85 : 21,596.65 = 13,766.42 : x
  2. Step 2: Convert to fraction form
    15,658.85/21,596.65 = 13,766.42/x
  3. Step 3: Cross multiply
    15,658.85x = 21,596.65 × 13,766.42
  4. Step 4: Simplify right side
    15,658.85x = 297,308,377.68
  5. Step 5: Solve for x
    x = 297,308,377.68/15,658.85
  6. Step 6: Final answer
    x = 18,986.61

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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.