Home / 15,658.42-21,608.81-8,584.69

Finding the Fourth Proportional to 15,658.42, 21,608.81 and 8,584.69

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Solution

The fourth proportional to 15,658.42, 21,608.81 and 8,584.69 is: 11,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658.42 : 21,608.81 = 8,584.69 : x
  2. Step 2: Convert to fraction form
    15,658.42/21,608.81 = 8,584.69/x
  3. Step 3: Cross multiply
    15,658.42x = 21,608.81 × 8,584.69
  4. Step 4: Simplify right side
    15,658.42x = 185,504,935.12
  5. Step 5: Solve for x
    x = 185,504,935.12/15,658.42
  6. Step 6: Final answer
    x = 11,846.98

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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.