Home / 15,841.62-21,861.63-8,768.70

Finding the Fourth Proportional to 15,841.62, 21,861.63 and 8,768.70

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Solution

The fourth proportional to 15,841.62, 21,861.63 and 8,768.70 is: 12,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.62 : 21,861.63 = 8,768.70 : x
  2. Step 2: Convert to fraction form
    15,841.62/21,861.63 = 8,768.70/x
  3. Step 3: Cross multiply
    15,841.62x = 21,861.63 × 8,768.70
  4. Step 4: Simplify right side
    15,841.62x = 191,698,074.98
  5. Step 5: Solve for x
    x = 191,698,074.98/15,841.62
  6. Step 6: Final answer
    x = 12,100.91

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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.