Home / 15,176.26-20,946.59-9,861.85

Finding the Fourth Proportional to 15,176.26, 20,946.59 and 9,861.85

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Solution

The fourth proportional to 15,176.26, 20,946.59 and 9,861.85 is: 13,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.26 : 20,946.59 = 9,861.85 : x
  2. Step 2: Convert to fraction form
    15,176.26/20,946.59 = 9,861.85/x
  3. Step 3: Cross multiply
    15,176.26x = 20,946.59 × 9,861.85
  4. Step 4: Simplify right side
    15,176.26x = 206,572,063.90
  5. Step 5: Solve for x
    x = 206,572,063.90/15,176.26
  6. Step 6: Final answer
    x = 13,611.53

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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.