Home / 15,084.26-20,817.71-8,369.87

Finding the Fourth Proportional to 15,084.26, 20,817.71 and 8,369.87

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Solution

The fourth proportional to 15,084.26, 20,817.71 and 8,369.87 is: 11,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,084.26 : 20,817.71 = 8,369.87 : x
  2. Step 2: Convert to fraction form
    15,084.26/20,817.71 = 8,369.87/x
  3. Step 3: Cross multiply
    15,084.26x = 20,817.71 × 8,369.87
  4. Step 4: Simplify right side
    15,084.26x = 174,241,411.85
  5. Step 5: Solve for x
    x = 174,241,411.85/15,084.26
  6. Step 6: Final answer
    x = 11,551.21

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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.