Home / 17,715.35-26,579.17-7,861.53

Finding the Fourth Proportional to 17,715.35, 26,579.17 and 7,861.53

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Solution

The fourth proportional to 17,715.35, 26,579.17 and 7,861.53 is: 11,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,715.35 : 26,579.17 = 7,861.53 : x
  2. Step 2: Convert to fraction form
    17,715.35/26,579.17 = 7,861.53/x
  3. Step 3: Cross multiply
    17,715.35x = 26,579.17 × 7,861.53
  4. Step 4: Simplify right side
    17,715.35x = 208,953,051.83
  5. Step 5: Solve for x
    x = 208,953,051.83/17,715.35
  6. Step 6: Final answer
    x = 11,795.03

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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.