Home / 19,861.38-29,795.91-6,715.89

Finding the Fourth Proportional to 19,861.38, 29,795.91 and 6,715.89

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Solution

The fourth proportional to 19,861.38, 29,795.91 and 6,715.89 is: 10,075.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.38 : 29,795.91 = 6,715.89 : x
  2. Step 2: Convert to fraction form
    19,861.38/29,795.91 = 6,715.89/x
  3. Step 3: Cross multiply
    19,861.38x = 29,795.91 × 6,715.89
  4. Step 4: Simplify right side
    19,861.38x = 200,106,054.01
  5. Step 5: Solve for x
    x = 200,106,054.01/19,861.38
  6. Step 6: Final answer
    x = 10,075.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.