Home / 14,915.70-20,584.26-8,543.34

Finding the Fourth Proportional to 14,915.70, 20,584.26 and 8,543.34

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Solution

The fourth proportional to 14,915.70, 20,584.26 and 8,543.34 is: 11,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.70 : 20,584.26 = 8,543.34 : x
  2. Step 2: Convert to fraction form
    14,915.70/20,584.26 = 8,543.34/x
  3. Step 3: Cross multiply
    14,915.70x = 20,584.26 × 8,543.34
  4. Step 4: Simplify right side
    14,915.70x = 175,858,331.83
  5. Step 5: Solve for x
    x = 175,858,331.83/14,915.70
  6. Step 6: Final answer
    x = 11,790.15

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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.