Home / 15,841.92-21,861.59-8,768.19

Finding the Fourth Proportional to 15,841.92, 21,861.59 and 8,768.19

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Solution

The fourth proportional to 15,841.92, 21,861.59 and 8,768.19 is: 12,099.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.92 : 21,861.59 = 8,768.19 : x
  2. Step 2: Convert to fraction form
    15,841.92/21,861.59 = 8,768.19/x
  3. Step 3: Cross multiply
    15,841.92x = 21,861.59 × 8,768.19
  4. Step 4: Simplify right side
    15,841.92x = 191,686,530.98
  5. Step 5: Solve for x
    x = 191,686,530.98/15,841.92
  6. Step 6: Final answer
    x = 12,099.96

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Double scale
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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.