Home / 15,584.46-21,505.68-8,871.72

Finding the Fourth Proportional to 15,584.46, 21,505.68 and 8,871.72

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Solution

The fourth proportional to 15,584.46, 21,505.68 and 8,871.72 is: 12,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,584.46 : 21,505.68 = 8,871.72 : x
  2. Step 2: Convert to fraction form
    15,584.46/21,505.68 = 8,871.72/x
  3. Step 3: Cross multiply
    15,584.46x = 21,505.68 × 8,871.72
  4. Step 4: Simplify right side
    15,584.46x = 190,792,371.37
  5. Step 5: Solve for x
    x = 190,792,371.37/15,584.46
  6. Step 6: Final answer
    x = 12,242.48

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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.